how does diffusion help a cell maintain homeostasis? responses:

A. it helps the cell expel excess waste.

B. it lets the cell know when it needs to produce more energy.

C. it helps the cell obtain and break down food for energy.

D. it helps maintain an equilibrium of particles inside and outside a cell.

Answers

Answer 1

Answer:

Explanation: Took the test

How Does Diffusion Help A Cell Maintain Homeostasis? Responses:A. It Helps The Cell Expel Excess Waste.B.
Answer 2

Diffusion is the movement of molecules through a semipermeable barrier from a higher concentration to a lower concentration. Therefore, option (D) is correct.

What is homeostasis?

The term "homeostasis," which derives from the Greek words for "same" and "steady," refers to any method that living things employ to actively preserve the relatively stable conditions required for survival. Walter Cannon, a doctor, first used the term in 1930.

Fluids and electrolytes, energy and nutrition, and immune response mediators are three factors that affect homeostasis.  For example, t Cell injury causes changes in the sodium-potassium pump, which disrupts fluid and electrolyte homeostasis, and surgery causes changes in functional extracellular fluid.

Hence, diffusion can help maintain the homeostasis in body.

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Related Questions

Why is groundwater an important source of freshwater storage?
a.
It constitutes approximately 30% of Earth’s freshwater.
b.
It is the only viable source of freshwater in some areas.
c.
It is available in conditions of drought.
d.
All of the above

Answers

Answer: My awenser

Explanation: Try A.

Groundwater is an important source of freshwater, partly because it accounts for approximately 30% of the Earth's freshwater. Groundwater is an important source of freshwater for areas that do not have access to other sources of freshwater, such as areas that are experiencing droughts.

Answer:

D (All of the above)

Explanation:

in addition to being produced in the pancreas, lipase is also produced in the stomach. is the structure of pancreatic lipase the same as gastric (produced in the stomach) lipase? justify your reasoning.

Answers

No, the structure of pancreatic lipase is not the same as gastric (produced in the stomach) lipase.

In the field of science, we can describe lipases as enzymes that are actively involved in the breaking of fats.

There are three sites in the human body where lipase enzyme is produced. These sites are serous glands, pancreas and stomach. However, the lipase produced by each of these glands or organs is different because each lipase has to function in a different environment. Hence, they are produced in order of the place where they are to function.

The lipase in the pancreas is in the form of triglyceride. The gastric lipase is produced by the chief cells.

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What happens when parathyroid glands become hyperactive and secrete too much of their hormone?.

Answers

In hyperparathyroidism, one or more of the parathyroid glands is overactive. As a result, the gland makes too much parathyroid hormone (PTH).

What is the cause of increased parathyroid hormone secretion?

The negative feedback of calcium levels in the blood towards the parathyroid glands primarily controls the production of thyroid hormones. Low blood calcium levels stimulate parathyroid hormone secretion, whereas high blood calcium levels prevent parathyroid hormone release.

Too much parathyroid hormone causes excessive calcium levels in the blood, which can lead to health issues such as bone thinning and kidney stones. Increased parathyroid hormone causes calcium levels in your blood to rise too high, which can lead to health problems such as bone thinning and kidney stones.

Therefore, when parathyroid glands become hyperactive and secrete too much of their hormone it results in hyperparathyroidism.

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Why are hydrophilic/polar substances unable to travel easily through the membrane

Answers

The size and charge of large polar molecules make it too difficult to pass through the nonpolar region of the phospholipid membrane without help from transport proteins.

How do organelles interact in the production and use of hemoglobin found in these cells? a. hemoglobin is produced by mitochondria and transports glucose so the chloroplasts in other cells can carry out photosynthesis. hemoglobin is produced by mitochondria and transports glucose so the chloroplasts in other cells can carry out photosynthesis. b. hemoglobin is produced by mitochondria and transports glucose so the ribosomes in other cells can carry out cell respiration. hemoglobin is produced by mitochondria and transports glucose so the ribosomes in other cells can carry out cell respiration. c. hemoglobin is produced by ribosomes and transports carbon dioxide so the chloroplasts in other cells can carry out photosynthesis. hemoglobin is produced by ribosomes and transports carbon dioxide so the chloroplasts in other cells can carry out photosynthesis. d. hemoglobin is produced by ribosomes and transports oxygen so the mitochondria in other cells can carry out cell respiration. hemoglobin is produced by ribosomes and transports oxygen so the mitochondria in other cells can carry out cell respiration.

Answers

Option D

Haemoglobin is produced by ribosomes and transports oxygen so the mitochondria in other cells can carry out cell respiration.

Haemoglobin (Hb) is a type of globular protein present in red blood cells (RBCs), which transports oxygen in our body through blood. It is a tetrameric protein and contains the heme prosthetic group attached to each subunit. It is a respiratory pigment and helps in transporting oxygen as oxyhaemoglobin from the lungs to different parts of the body. Some amount of carbon dioxide is also transported back via haemoglobin as carbaminohaemoglobin.

Heme group refers to the group of heme molecules that are joined to hemoglobin or myoglobin. Heme molecules are referred to as individual heme. The mitochondria and cytoplasm of immature RBCs are where the heme portion of hemoglobin is generated. A center iron atom and a complex of four nitrogen atoms make up the heme group.

The cytoplasm is where ribosomes produce the globin protein. Mature mammalian RBCs still produce Hb even after losing their nuclei, up to the time that the reticulocytes reach the vasculature.

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which two statements explain why nitrogen is important to sustaining a healthy ecosystem?

A. many of the biomolecules in living things contain nitrogen.
B. animals break down nitrogen during cellular respiration to produce energy.
C. animals need nitrogen from their surroundings in order to grow and reproduce.
D. animals can use nitrogen directly from the atmosphere.

Answers

The statements 'many of the biomolecules in living things contain nitrogen' and 'animals need nitrogen from their surroundings in order to grow and reproduce.' explain why nitrogen is important to sustaining a healthy ecosystem (Options A and C).

Why nitrogen is important for animal life?

Nitrogen is fundamental in animal life because major groups of biomolecules such as proteins and DNA are composed of nitrogen. For example, in DNA, nitrogen bases composed of nitrogen are key parts of nucleotides.

Therefore, we can conclude that biomolecules contain nitrogen and animals need this element to survive in their environments (Options A and C).

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one major difference in the skeleton of a typical ape and an old world monkey is that … a. old world monkeys have more flexible shoulder joints than apes. b. apes have longer thumbs and shorter fingers than old world monkeys. c. except for humans, apes have longer arms than legs. d. ape shoulder blades (scapulae) are on the sides of the ribcage. e. old world monkeys have a more flexible lumbar spine than apes.

Answers

One major difference in the skeleton of a typical ape and an old world monkey is that: (c) except for humans, apes have longer arms than legs.

Skeleton is the framework of the body made of bones that provides a definite shape and posture to the body. The skeleton also serves to protect the vital organs of the body from any injury. In humans, the skeleton is composed of 206 bones in adults.

Apes are the mammals. They belong to the order primates that are believed to be the nearest ancestors of the humans today. Apes do not exhibit tails in their body due to some mutation.

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During chemiosmosis, hydrogen ions accumulate in the ______ of the mitochondrion to create a large electrochemical gradient for aerobic cellular respiration.

Answers

During chemiosmosis, hydrogen ions accumulate in the intermembrane space of the mitochondrion to create a large electrochemical gradient for aerobic cellular respiration.

The concentration of hydrogen ions in the intermembrane space is higher than in the matrix as a result of the pumping of hydrogen ions through the inner membrane. As a result of this chemiosmotic gradient, the ions move back over the membrane into the matrix, where their concentration is lower, as a result of this chemiosmotic gradient.

The intermembrane gap is pumped with protons (H+) during this process. Protons flow through ATP synthetase in the inner membrane as a result of the gradient formed by the high proton concentration in the intermembrane gap and the low proton concentration in the matrix.

During cellular respiration, ATP is created via a process called chemiosmosis. Protons migrate through certain channels during chemiosmosis from the inner to the outer compartment of mitochondrial membranes.

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Producers and consumers recycle carbohydrates between them. which macronutrient is the one that is mainly recycled here?

Answers

Carbon is the main macronutrient that is recycled between producers and consumers.

What is meant by the carbon cycle?

Animals are called consumers as they use the oxygen plants release into the atmosphere. When consumers breathe, carbon dioxide is released back into the atmosphere, breaking down complex organic compounds like glucose and returning the macronutrient carbon to the atmosphere for reuse by producers.

In photosynthesis, producers use carbon dioxide to create food. When this meal is consumed for energy during cellular respiration, some carbon dioxide is released back into the atmosphere. The producer's body stores the remaining amount of the macronutrient as sugar. Consumers can now access it for energy. This is how carbohydrates are recycled between them.

Hence, macronutrient carbon plays the main role in recycling carbohydrates between producers and consumers.

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Skeletal, smooth, and cardiac muscles fall into what category of organization?
cellular
tissue
organ system
organ

Answers

Skeletal, smooth, and cardiac muscles fall into organ system.

Organ System- The organ system is the collection of organs that cooperate to carry out a certain task in the body of an organism. Organs, that are self-contained collections of tissues like the heart that cooperate to carry out a single function, are present in the majority of animals and plants. The circulatory system, musculoskeletal system, and digestive system are a few instances of organ systems and their functions.

Tissue- Tissue is a collection of cells with a common structure and function that work as a single unit. The body's tissues give it shape and aid in energy storage and heat retention.

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Red blood cells, which carry oxygen gas to the cells (which they need for aerobic cellular respiration/ to make enough ATP to stay alive!) only live for 90 days and are constantly being made in the marrow of your long bones. This is an example of an important interaction between WHICH 2 SYSTEMS?

A. digestive
B. urinary
C. circulatory
D. skeletal
E. muscular​

Answers

Answer:

Circulatory and skeletal

Explanation:

Bone marrow is found in your bones and red blood cells are used in your ciculatory sytem

C I DID THIS!! ONE BEFORE

A phospholipid has two parts - a phosphate head which is ____and fatty acid tails which are _____

Answers

Answer:

1. hydrophilic/"water-loving," 2. hydrophobic/"water-hating"

Explanation:

Please i'll give brainliest, answer in a short pargraph please,Does ATP release energy when it is beingformed (dehydration synthesis) or brokendown (hydrolysis)?

Answers

ATP release energy when it is broken down by hydrolysis.

What is hydrolysis?

Hydrolysis is the chemical process of decomposition involving the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion of water.

ATP (adenosine triphosphate) is a biological molecule that stores and releases energy in living cells. ATP is made up of three components namely;

Three phosphate groupAdenine basefive-carbon sugar

However, energy is released when phosphate bond is broken to release phosphate groups and produce ADP. This process occurs via hydrolysis.

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If the SOLUTE concentration is higher on the left than the right, in which direction will the water move?

Answers

is the B is correct the letter (B)

Water will move to the side with more solutes (from right to left) therefore, option (B) is correct.

What is diffusion?

Diffusion is the movement of particles or molecules from an area of higher concentration to an area of lower concentration. It is a natural process that occurs in liquids, gases, and solids and is driven by the tendency of particles to move from areas of higher concentration to lower concentration in order to achieve equilibrium.

Diffusion is a vital process in living organisms, as it helps to distribute nutrients, oxygen, and other substances throughout the body. It also plays a role in the movement of gases in and out of cells and in the regulation of temperature and pH within cells.

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the scientific hypothesis about the origin of the earth and solar system is different

Answers

Answer:

True. It IS different.

Explanation:

The scientific hypothesis about the origin of the earth is about how the Earth formed in the solar system.

The scientific hypothesis about the origin of the solar system is about how the solar system was formed along with all the other star systems in the universe.

These two things are different. One focuses on the formation of a special planet (Earth), while the other focuses on the formation of this solar system and all the other start systems in the universe.

The scientific hypothesis about the origin of the earth and solar system is different. Thus, the given statement is true.

What is Scientific hypothesis?

The scientific hypothesis about the origin of the earth which is about how the Earth formed in the solar system. The scientific hypothesis about the origin of the solar system is about how the solar system was formed along with all the other systems in the universe.

There are two things which are different. One, focuses on the formation of a special planet which is Earth, while the other focuses on the formation of the solar system and all the other systems in the universe.

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select all of the examples of potential energy

Answers

What are the examples

what is the answer for the question?

Answers

C bc we can’t tell for sure that both parents have homozygous dominant alleles. maybe they both have heterozygous alleles and there is a 25% chance that the newborn child has homozygous recessive alleles which may then lead to blue eyes

Which of these is TRUE about rRNA?

A. It helps mRNA move along the ribosome.

B. It unzips DNA strands.

C. It creates extra cytoplasm.

D. It takes DNA outside the nucleus.

Answers

The statement (A) is correct about rRNA that it helps mRNA move along the ribosome.

What is rRNA?

Ribosomal ribonucleic acid is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes.

Moreover, rRNAs are found in the ribosomes and account for 80% of the total RNA present in the cell. Ribosomes are composed of a large subunit called the 50S and a small subunit called the 30S, each of which is made up of its own specific rRNA molecules.

Therefore, ribosomal RNA (rRNA), molecule in cells that forms part of the protein-synthesizing organelle known as a ribosome and that is exported to the cytoplasm to help translate the information in messenger RNA (mRNA) into protein.

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Answer:A

Explanation:

What might have caused the rabbit population shown in the graph below to increase less in the third year than in the previous two years?
A graph with Years on the x-axis from 0 to 3 and Rabbits on the y-axis from 0 to 400, by hundreds. The line begins at 50, increases to near 150 at 1 year, increases to 250 at 2 years, ends at almost 300 at 3 years.
a.
an unusually cold winter the year before
b.
normal weather conditions
c.
habitat loss through urban sprawl
d.
habitat gain through urban sprawl

ANSWER is c

Answers

The rabbit population shown in the graph could have increased less in the third year than in the previous two years due to habitat loss through urban sprawl.

What is habitat loss?

In ecology, habitat loss refers to the loss of the habitats of living organisms. The loss could be due to natural disasters or anthropological activities.

When the population of organisms of a particular species experiences habitat loss, it automatically results in a loss to some parts of the population.

In other words, habitat loss causes a decline in the population of organisms.

In the graph, the rabbit population experienced almost equal growth in the first and second years. The growth experienced in the third year, however, is not as big as in the first two years.

The reduction in the growth of the population could be linked to different factors. The logical one from the options is habitat loss through urban sprawl.

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Answer:

I’m just the best

Explanation:

The heart pumps oxygen-rich blood ______________ and oxygen-poor blood ________________.
*


to the body…. to the lungs
to the lungs… to the body
to the body… to the heart
to the heart… to the body

Answers

Answer:The heart pumps oxygen-rich blood (from the lungs to the body) and oxygen-poor blood (from the body to the lungs).

Does the floor surface affect her for a ball can roll? turn to rap set up one ramp is made of wood and want to smooth. the other ramp is covered in grass a baseball is lego not push from the top of the ramp the rams are both the same height and the same way after letting go of the ball the distance between the ramp and where the bus stop is measured the length is measured in centimeters using a meter stick. what are two controls?

Answers

The purpose of this experiment is to see how different ramp surface types affect distance. The least amount of friction will be created by the smoothest surface.

Galileo Galileo demonstrated that objects fall at the same rate regardless of their weight. Newton's first law of motion states that unless acted upon by a net external force, an object at rest will remain at rest and an object in motion will continue to move at a constant speed. Gravity and friction are the two outside factors at work in our experiment. The toy car is being pulled downward by Earth's gravity as it rolls, creating friction and a force when two materials slide against one another.

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6. cancer, the uncontrolled growth of cells, often results in a tumor, or mass of abnormal cells. some cancerous tumors consist of many cells that are much smaller than normal. according to model 1, what part(s) of the cell cycle is (are) most likely being affected?

Answers

Mitosis in g1 and preventing full cell growth most likely being affected.

What is the main reason for cancers?

Cancer is brought on by changes (genetic changes) to the DNA of cells. A cell's DNA is organized into numerous distinct genes, each of which carries a set of instructions directing the cell's performance of specific tasks as well as its growth and division.

As a result of local tumor invasion, abnormal tumor vasculature, or tumor regression, bleeding may be brought on by the cancer itself. It might also be connected to previous chemotherapy or radiation therapy for cancer.

Mitosis :

Chromosomes that have been replicated are divided into two new nuclei during the cell cycle phase known as mitosis. Mitosis, the process of cell division, produces genetically similar cells with a constant number of chromosomes. Thus, equational division is another name for mitosis.

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Write a summary about the relative positions of the sun, earth and moon throughout the lunar cycle. Your summary must should be a minimum of 5 sentences.

Answers

Answer:

The amount of Moon we see changes over the month — lunar phases — because the Moon orbits Earth and Earth orbits the Sun. Everything is moving. During a lunar eclipse, Earth comes between the Sun and the Moon, blocking the sunlight falling on the Moon. Earth's shadow covers all or part of the lunar surface.

Stu wanted to calculate the resistance of a light bulb connected to a 4.0-V battery, with a resulting current of 0.5 A. He used the formula R = VI and obtained an answer of 2 .

Answers

Making use of Ohm's law, the resistance of the light bulb is 8 Ohms and Stu’s solution changed into wrong.

Given the subsequent facts.

Voltage = 4.0 Volts

present day = zero.5 Amperes

To calculate the resistance of the mild bulb, we might observe Ohm's regulation:

Ohm's law states that at a regular temperature, the modern-day flowing thru an electrical circuit is at once proportional to the voltage carried out throughout the 2 terminals of the circuit and it is inversely proportional to the resistance inside the electric circuit.

Mathematically, Ohm's law is given by way of the method;

where;

V is the voltage measured in Volts.

i'm currently measured in Amperes.

R is resistance measured in Ohms.

Making resistance (R) the situation of components:

 (obviously, Stu became wrong with the formulation he used)

Substituting the given parameters into the method, we have;

Resistance, R = 8 Ohms.

therefore, the resistance of the light bulb is

8 Ohm.

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which order can be characterized by piercing sucking mouthparts and hemeelytra? group of answer choices hemiptera (true bugs) odonata (dragonflies) blattodea (cockroaches) mantodea (praying mantis)

Answers

Hemiptera (true bugs) can be characterized by piercing sucking mouthparts and hemelytra.

Hemiptera is the order of the class of insects. The examples of Hemiptera include cicadas, aphids, planthoppers, etc. Their mouth parts are transformed to an elongated sucking beak like structure. The parts modified are mandibles and maxillae.  They undergo the process of incomplete metamorphosis.

Hemelytra are a type of forewing where the wings have a thickened base with leather-like texture and a membranous apex. They are most prominently found in insects and bugs. They are more specifically found in the suborder Heteroptera of the the order Hemiptera.

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expression, purification and testing of lanthanide-dependent enzymes in methylorubrum extorquens am1. methods enzymol. 650:97-118. doi:10.1016/bs.mie.2021.02.001.

Answers

A systematic method for Methylorubrum extorquens AM1, a model methylotrophic bacteria, to grow in order to express enzyme purification and testing lanthanide-dependent enzymes.

Growth is optimized for both scaled-up batch cultivation for enzyme purification, enabling in vitro enzymatic research, and high-throughput phenotypic characterization, aiding in vivo studies. It has been established that both methods are crucial for comprehending the structure and activity of these enzymes. In order to identify lanthanide dependence, expression systems have been developed to produce enzymes both with and without lanthanide metals. The procedure outlined here is anticipated to hasten the identification of new lanthanide-dependent enzymes and our comprehension of the function of these metals in the larger biological system.

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the anaerobic conversion of 1 mol of glucose to 2 mol of lactate by fermentation is accompanied by a net gain of:the anaerobic conversion of 1 mol of glucose to 2 mol of lactate by fermentation is accompanied by a net gain of:.in the second half of the glycolytic pathway, atp molecules are produced and with the offset of atps consumed in the first half, the net yield is atps per glucose.

Answers

The net ATP gain during the anaerobic conversion of glucose to lactate is 2 ATP molecules per glucose molecule.

During the process of glycolysis, 2 molecules of ATP are first expended to produce fructose-1,6-bisphosphate. Then, this molecule is converted into 2 molecules of glyceraldehyde-3-phosphate (G3P), which is further oxidized into 1,3-bisphosphoglycerate (1,3BPG), producing 1 NADH per G3P molecule.
One 1,3BPG molecule is transformed into pyruvate, forming 2 ATP molecules. This means that 2 * 2 = 4 ATP are formed per glucose molecule, with the net gain being 4 - 2 = 2 ATP molecules per glucose molecule transformed into 2 pyruvate molecules.

NADH entering the electron transport chain would produce more ATP, but during anaerobic conversion (also known as fermentation), pyruvate is reduced to lactate, using NADH as the reducing agent, so the net gain remains just 2 ATP molecules.

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alcohol . a. decreases the risk of pancreatitis b. stimulates the central nervous system c. lowers inhibitions d. is not consumed by students under age 21 e. is converted to glucose in the liver

Answers

The correct answer [c] Consuming alcohol lowers inhibitions.

Consuming alcohol lowers the inhibitions.

What do you mean by inhibition?

In psychology, inhibition is the conscious or unconscious restraint or restriction of a process or behavior, particularly of urges or wants. The ability to inhibit oneself from acting on some impulses, such as the desire to hit someone in a fit of rage, and the ability to postpone the enjoyment of enjoyable activities, all serve important social functions. Conscious inhibition occurs frequently in daily life and appears whenever two opposing urges are felt (e.g., the desire to eat a rich dessert versus the desire to lose weight).

According to psychoanalytic theory, inhibition serves as a mediator between the superego (the conscience) and the id (primitive desires). Taboos are socially imposed inhibitions that are raised to the level of prohibition, such as those against incest or murder of unwritten laws

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WILL GIVE BRAINLIEST
Recently, it has been proposed that three domains be added to our hierarchy of classification of living things. When these domains are added, where do they fit in the hierarchy?

After the class level and before the family level

Below the kingdom level

Above the kingdom level

Between the order and phylum levels

Answers

Answer:

Above kingdom Level

Answer:

C

Explanation:

PLEASEEEEE Draw the generic structure of the basic building block of nucleic acids and label its threekey parts.

Answers

The main building blocks that could be used to construct a nucleic acid as shown in the diagram are a nitrogenous base, a sugar molecule and the phosphate group.

What is the nucleic acid?

The term nucleic acid have to do with the substance that is composed of the nitrogenous base and the phosphate group. The nitrogenous base is a cyclic structure that has nitrogen as one of the atoms that have been attached to it. This nitrogen atom is responsible for the basicity of the substance because of the presence of lone pair on the nitrogen atom.

Now we also have the phosphate group which attaches to the nitrogenous base in a remarkable position which now allows the compound to function as a nucleic acid.

We could now agree that the basic building blocks for the nucleic acid are the phosphate moiety as well as the nitrogenous base. The nucleic acid plays an important role in the sense that it is used to code the genetic material that is required for reproduction in the body.

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Other Questions
find both the number combinations in the number of permutations for 9 objects taken 7 at a time Your answer isDante will run at least 33 miles this week. So far, he has run 15 miles. What are the possible numbers of additional miles he will run?Use t for the number of additional miles he will run.Write your answer as an inequality solved for t. Is it mandatory for US citizens 18 years old and older to register membership in a political party? 2(64x - 25) (x + 49) = 0 What would the code for this be?The language used is Python. Please help. Match each issue with the best solution 1 An administrator needs to gather informationon patient referrals to determine the sourceof each referral and which types of agenciesrefer the greatest number of patients.2 A primary care provider notices an increasein fracture injuries among patients in the10-to 13-year-old age range and wondersif there might be a connection among theinjury type, the age range, and patients'leisure activities.3 A nurse values patient-centered care andwants to encourage her patients to takean active role in developing their treatment plans.A. Shared decision makingB. Analytical thinking C. Abstract thinking Silver has been regarded as something precious for thousands of years. By 700 BCE, it was used to make coins. The production of silver grew over the centuries, but when Europeans first went to America, silver began to be used in many new and different ways. By the 19th century, nearly 120 million troy ounces were being produced annually. Now, more than 5000 years after ancient cultures first began to mine this precious metal, an average of 671 million troy ounces is mined every year. In earlier times, silver was thought to have magical properties and it was considered to be useful in keeping bad spirits away. Nowadays, most people think of silver in relation to ornaments. But it is significant for its antibacterial properties too. The ancient Phoenicians kept water, wine and vinegar in silver vessels to ensure freshness. It is only recently, however, that scientists have discovered how silver works. Quite simply, silver destroys the ability of bacteria to form the chemical bonds which are essential to their survival. When bacteria and silver come into contact, the bacterial cells fall apart. Today, there are bandages and ointments that use silver as an active ingredient. Silver promotes the growth of new cells, which in turn increases the rate of healing. This makes silver especially valuable for treating burns and wounds. Another key use for silver is in the millions of water purifiers that are sold each year. Silver prevents bacteria from building up in filters so that they can work effectively. Research has shown that silver, together with oxygen, cleans water. This means that other chemicals, such as chlorine, do not have to be used. Silver is therefore starting to be added to water purification systems in hospitals, community water systems and swimming pools. Scientists hope that silver will be able to be used in helping to produce clean drinking water in countries where water-borne illness is a problem. Current research shows that this use of silver is an exciting development for the global water supply. In the past, silver was often used to decorate places of worship, and many people saw it when they went to pray. Today, there is probably much more silver around us, but we do not necessarily see it. For example, every time you travel in a motor vehicle you are surrounded by pieces of silver. Every electrical action in a modern car is activated with silver-coated contacts. Basic functions such as starting the engine and opening power windows .all need a special switch that has a silver covering. Another important feature for our driving safety is the silver-ceramic lines fitted into the rear window. The heat created by these lines clears the rear window of mist and ice so that we can see clearly out of it. Silver is just as valuable today as it has been throughout human history. On the basis of your understanding of the passage, answer the following questions by choosing the most appropriate option. i. When did silver started to be used for more things than plates and coins? (a) When Europeans first went to America (b) When Turkey produced (c) Both (a) and (b)(d) Neither (a) nor (b) ii. How long ago was silver first mined? (a) 5000 years ago(b) More than 5000 years ago (c) By 700 BCE(d) By the 19th century iii. According to the chart, which is the highest silver-producing country, and how much silver does it produces per year? (a) Country: Kazakhstan; Amount: 17 million troy ounces (b) Country: Iran; Amount: 17 million troy ounces (c) Country: India; Amount: 3 million troy ounces (d) Country: Kazakhstan; Amount: 3 million troy ounces iv. What do most people today associate silver with? (a) ornaments(b) coated utensils (c) coins(d) filteration v. How does silver destroy bacteria? (a) Destroys bacterias ability to form chemical bonds(b) Makes cells fall apart (c) Both (a) and (b) (d) Neither (a) nor (b) vi. Why is silver useful in treating skin injuries? (a) promotes growth of new cell(b) prevents cells from healing (c) falls the bacterial cells (d) used in bandages vii. What health problem might silver prevent in some countries? (a) burn problems (b) air borne viruses (c) water borne illness(d) health problems viii. Why is silver used in the rear window of a car? (a) for driving safety (b) it clears mist and ice (c) it enables to see clearly(d) All of these ix. According to the chart, which is the lowest silver producing country?(a) Kazakhstan(b) Iran (c) Indonesia(d) Turkey Simplifying a Rational Expression Simplify (a ^ 2 * b ^ 8)/(a ^ 2 * b ^ 3 - a ^ 4 * b ^ 2); (a * b ^ 2)/(1 - a ^ 4 * b ^ 2); (a ^ 3 * b ^ 8)/(a ^ 2 * b ^ 2 * (b - a ^ 2)); b/(1 - a); (a * b ^ 4)/(b - a ^ 2) Mariam wants to buy strawberries and apples tomake a fruit tart. Strawberries cost $3 per poundand apples cost $3.25 per pound. How many poundsof fruit does she buy if she buys 0.5 pounds ofstrawberries and 3 pounds of apples? How manypounds of fruit does she buy if she buys x pounds ofstrawberries and y pounds of apples? Right triangle DEF is shown below.What is DF to the nearest tenth of a meter? Do Now:1. What is the author's main purpose in writing this humorous narrative?OA to convince people to tell jokesOB to describe a life-changing moment in his lifeCC to describe what it's like to go to Catholic schoolOD to explain why he didn't get a good grade in religion class2. Select the sentence that supports the answer in Part A.OA "That day I reached a life-choice fork in the road." (paragraph 7)B "The whole class turns to look at me and the train wreck about to happen." (paragraph14)C "I can only feel the punch line building." (paragraph 19)OD "I don't remember the grade I got in fifth-grade religion class." (paragraph 25)3. What can the reader infer about Mr. Scieszka's ability to tell jokes as a child?OA He was shy, and jokes helped him gain confidence.OB He enjoyed telling jokes, but he often messed up the punch lineOC Even as a child, he already knew how to get an audience laughing.OD Even as a child, he knew how to make humorous connections with adults, likeSister Margaret Mary. Using search operators in conjunction with strong keywords is a smart search strategy. Imagine you are looking for primary sources to answer the question, How did the United States involvement in World War I affect American daily life? How would you go about formatting a search query? Check all that apply.A. Using natural language in the search fieldB. Searching for results with United States OR American in the title fieldC. Using the Boolean operator NOT to limit your articles related to WWID. Constricting your search results by publication yearsin responder . how much space is saved by representing the hawaiian word aloha in the variable length code as compared to the fixed length representation? what is the compression ratio? you are running an old pc with windows xp installed. you have gotten a new computer with windows 10 but you want to be able to still run some of the applications installed on your old pc using virtualization. what can you do? a. install a second monitor on your new pc b. create a virtual disk and restore the xp machine from backup c. use physical-to-virtual conversion d. move the old hard disk to your new pc using the model of demand and supply for u.s. dollars, what would you expect to happen to the u.s. dollar exchange rate if, in light of a worsening geopolitical situation, americans viewed foreign bonds as riskier than before? production at south side assemblers last quarter was 178,500 units. if the company expects to produce 9.5% less units this quarter, how many units do they expect to produce this quarter? 4. What do the words "offensive" and "obscene" mean? How are they alike, and how are they different?How do these terms relate to censorship of books? Please help with finding the approximate mean pretty easy 7th grade math. One cause for the rapid population growth since the Industrial Revolution is Choose... better medical care.infant mortality.food shortages.poor sanitation Hi any one can tell me what we post to be doing this assignment? I can show more details.