PLEASE HELP I WILL MARK BRAINLIEST!!!!
A thunderstorm! You see a flash of lightning across the sky. Five seconds later, your hear the thunder. If
lightning and thunder come from the same source, then why don't they occur at the same time?
They do! The time difference is due to the way sound waves and light waves travel. Light travels
extremely fast through the air, 300,000,000 m/s. Sound travels much slower, 343 m/s through air.
Therefore we can see light in an instant, but it takes a while to hear thunder. The speed of light waves and
sound waves depends on the medium through which they travel. Take a look at the data in the image
above.
How do the speeds of sound and light waves compare?
1x
A
B
C
D
Sound waves travel fastest through a dense medium like the solid ground.
Light waves can travel through a vacuum; sound waves cannot.
Light waves cannot travel through a dense material like a solid.
The denser the medium, the faster sound travels.
E
The speeds of light and sound are affected in the same way in different mediums.

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.

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:

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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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.

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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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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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:

If you cut your finger and you are bleeding profusely. It is FALSE to state that it appears to be only in the epidermis.

Blood vessels do not exist in the epidermis; they are found in the dermis, the innermost layer of our skin. If you cut yourself and bleed, it signifies you've ripped through the epidermis and exposed the dermis.

It is to be noted that the dermis is a fibrous structure made up of collagen, elastic tissue, and other extracellular components such as vasculature, nerve endings, hair follicles, and glands. The dermis's purpose is to help and shield the skin and deeper layers, as well as to aid in thermoregulation and feeling.

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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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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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The body's circulating fluids are blood and lymph.

In the human body, there are two types of fluid systems moving all across the body. These fluids are named as blood and lymph.

Blood is a red-colored fluid and its major function is to transport oxygenated blood to the cells and to remove deoxygenated blood. Blood is a part of the circulatory system.

The lymph is a white-colored fluid and the major function of the lymphatic system is to maintain the fluid levels in the body. All the extra leaking cells are removed by the lymphatic system. Lymph s a part of the lymphatic system.

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The students perform multiple trials of the same experiment because the surrounding temperature is not uniform every day and also to get more accurate values.

As a way to preserve attention to the converting environmental temperatures (that's a variable in the test), the test needed to be performed each day to get accurate results preserving attention to all the factors.

An experiment is defined as a method by which one or more unbiased variables are deliberately manipulated to confirm or accurate the postulates of the hypotheses that have been created. Its aim is to build up reliable statistics.

Medical experimentation collects the one-of-a-kind strategies/approaches used by researchers to check their theories and assumptions concerning their items of having a look at, through the repetition of certain phenomena located in nature, within the managed surroundings of the laboratory.

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Disclaimer:- your question is incomplete, please see below for complete question.

A student was trying to determine how many ice cubes would be needed to keep a glass containing 250 mL of water under 15°C for a minimum of 30 minutes. The student placed

varying numbers of ice cubes in different cups and recorded the time it took for the water to warm up to 15°C. The student then performed the same experiment each day for a

week. Why did the student perform multiple trials of the same experiment?

Answer:

Above kingdom Level

Answer:

C

Explanation:

Answer:

Circulatory and skeletal

Explanation:

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

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

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:

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

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.

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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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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ATP release energy when it is broken down by 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;

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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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.

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 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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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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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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Answer:

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

Explanation:

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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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.

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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