Answer:
both
in plants cells, there is one large while in animal cells there are many in small sizes
Please mark as brainliest
Brittany misses school one day because she is sick and needs to go to the doctor. She tells the doctor her symptoms and the doctor concludes that she has a common cold. Which of the following answer
choices best describes the common cold?
A. It multiplies with a host cell, and cannot be treated with antibiotics.
B. It multiplies without a host cell, and cannot be treated with antibiotics.
C. It multiplies with a host cell, and can be treated with antibiotics.
D. It multiplies without a host cell, and can be treated with antibiotics.
Answer:
A. It multiplies with a host cell, and cannot be treated with antibiotics.
Explanation:
Viruses are surrounded by a protective protein coating; they don't have cell walls that can be attacked by antibiotics like bacteria does. It is because of this that antibiotics don't work on viruses.
Flu viruses and many cold viruses also have a viral envelope, meaning the capsid is covered by two layers of lipids similar to the cell membranes found on organisms. Viruses can't multiply on their own — they must infect the cells of a living creature.
Salivary amylase is an enzyme found in the mouth. It breaks down starch into sugars. Which of these best explains why salivary amylase does not break down proteins?.
The best option that explains that why salivary amylase does not break down proteins is that proteins do not have the right substrate for the enzymes.
In the field of biology, we can describe enzymes as biological catalysts that are used to speed up a reaction. Each enzyme is specific for a reaction because the active site of an enzyme is specific for a particular reactant.
As salivary amylase is an enzyme that is specific for breaking down starch because its active site is specific for the starch reactants, hence the amylase enzyme will not work for proteins. The protein reactants will not fit into the active site of the salivary amylase enzyme.
Although a part of your question is missing, you might be referring to this question:
Salivary amylase is an enzyme found in the mouth. It breaks down starch into sugars. Which of these best explains why salivary amylase does not break down proteins?
a) The enzyme is the wrong substrate for proteins
b) proteins do not have the right substrate for the enzymes.
c) Proteins do not have the proper active site for the enzyme to work on them.
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Waste product that forms when muscles
lack oxygen needed for metabolism.
what element of fibrous joints gives the joint its ability to resist stretching and control the amount of movement at the joint? what element of fibrous joints gives the joint its ability to resist stretching and control the amount of movement at the joint? collagen fibers articular cartilage elastic fibers calcium
The element that gives the Fibrous joints the ability to resist stretching and control the amount of movement at the joint is Collagen fiber.
Fibrous joints are immovable or fixed joints, as the movement of joints is not allowed between the bones. They do not have a joint cavity. In these joints, the articulating parts are separated by collagen fibers, also known as white connective tissue, which passes from one part to another.
Collagen fibers contain a hierarchical structure made up of collagen molecules, microfibrils, fibrils, fibers, and fascicles that prevents tendon and other load-bearing tissues from deforming.
Fibrous joints are subdivided into three types namely sutures, gomphoses, and syndesmoses.
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The coronary arteries supply oxygenated blood to heart muscle. Following a heart attack, which of the events would occur in heart tissue due to a block in the coronary arteries? select all that apply.
Following a heart attack, lactic acid would accumulate in the tissues due to glycolysis and fermentation, and the production of ATP would decrease. Thus, alternative A and C.
Coronary arteries are blood vessels found on the heart that supply blood rich in oxygen and nutrients to the muscles of the heart. The heart makes use of oxygen, just like any other muscle in the body to break down glucose for energy.
However, if the coronary arteries become narrowed or blocked, the supply of oxygen and other nutrients to the heart is reduced or interrupted. This could happen due to a build-up of cholesterol or plaque in the coronary artery, making it narrow or blocked and leading to a heart attack.
Due to the lack of oxygen, the cells in the heart start to break down glucose using lactic acid fermentation, a type of anaerobic respiration. Since the body cannot further break down lactic acid, it accumulates in the tissues. ATP production also decreases because lactic acid fermentation does not produce as much ATP as aerobic respiration.
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Complete question:
The coronary arteries supply oxygenated blood to heart muscle. Following a heart attack, which of the events would occur in heart tissue due to a block in the coronary arteries? Select all that apply.
A.Lactic acid would accumulate in the tissue due to glycolysis and fermentation.
B.Pyruvate would accumulate.
C. The production of ATP would decrease.
D. Phosphofructokinase, an intermediary enzyme of glycolysis, would be activated.
Which option explains how some parts of a plant can be white?
Responses
The white parts of a plant reflect all colors of light falling on them except white.
The white parts of a plant absorb all colors of light falling on them except white.
The white parts of a plant reflect all colors of light falling on them.
The white parts of a plant absorb all colors of light falling on them.
Explanation:
Parenchymal cube-shaped
loosely packed
thin-walled
relatively unspecialized
contain chloroplasts
photosynthesis
cellular respiration
storage
food storage tissues of potatoes
potatoes for sale at a grocery store
Collenchymal elongated
irregularly thickened walls
support
wind resistance
strings running through a stalk of celery
photograph of celery
Sclerenchymal very thick cell walls containing lignin support
strength
tough fibers in jute (used to make rope
Which substances are PRODUCED during photosynthesis?
Which substances are PRODUCED during cellular respiration?
Why do plants go through photosynthesis?
Answer:
water oxygen carbon dioxide and oxygen c
O
Describe the pattern between the wolf (predator) population in relation to the moose (prey) population
They are interdependent. Wolves get food and multiply, moose decline, followed by a decline in wolves.
What connection exists between population growth and carrying capacity?The average population size of a species in a given habitat is referred to as carrying capacity. Environmental elements including sufficient food, shelter, water, and mates are able to control the population number of the species. The population will decline until the resource recovers if these needs are not supplied.
Both in nature and in the laboratory, logistic growth is frequently seen but ecologists have found that, contrary to what logistic growth predicts, many population sizes change with time.
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the best statement that describes breathing
Answer: Breathing
Explanation: The process of inhaling air into the lungs, absorbing oxygen through alveoli which then moves into the blood in the capillaries. Carbon dioxide moves from the blood in the capillaries, to the alveoli where it is then expelled as a gas from the lungs, and exhaled.
there are two forms of human earwax: wet and dry. w is a dominant allele that produces wet earwax. in a sample of swedes, you measure the following genotypes: ww
The allele frequency of the W is 90%.
What is Allele?According to the definition of an allele given in the top textbooks about genetics and evolution, an allele is a different arrangement of the same nucleotides in the same location on a long DNA molecule.
"A locus is the genomic or chromosomal site of a gene or other genetic element, and alleles are different DNA sequences at a locus.
SNPs, or single nucleotide polymorphisms, are the most basic alleles. however they can also involve base pair-sized insertions and deletions, up to thousands of them.
Typical popular definitions of "allele" only include several alleles found inside genes. For instance, the ABO gene, that has six common allele, regulates the ABO blood grouping. Nearly every live person's phenotype again for ABO gene is some mix of simply these in population genetics.
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Complete question:
There are two forms of human earwax: wet and dry. W is a dominant allele that produces wet earwax. In a sample of Swedes, you measure the following genotypes: WW= 810, Ww =180, and ww = 10 What is the allele frequency of W?
Imagine that you have set up a genetic screen to identify e. Coli mutants that cannot metabolize the amino acid tryptophan for energy. Beginning with a master plate containing many colonies, you prepare replica plates on medium with glucose or tryptophan as the only energy source. You would look for colonies that _____.
Replica plates on medium that only contain glucose or tryptophan as a fuel source. You would search for colonies that can only develop on glucose-containing plates.
How do RNA hairpin twists and the end of transcription in E. coli connect to one another?Complementary base pairing produces the twists that divide the RNA transcript from the transcription bubble. The highest frequency of GbM is found in "housekeeping" genes, while the lowest frequency is found in genes with the most varied expression.
The hairpin loop that forms on the mRNA strand during transcription divides the DNA template strand from the RNA polymerase. The mechanism is known as rho-independent or intrinsic termination, and the sequences involved are known as terminator sequences.
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If the genome of the bacterium e. Coli requires about 20 minutes to replicate itself, how can the genome of the fruit fly drosophila be replicated in only 3 minutes?.
Explanation:
If the genome of the bacterium E. coli requires about 20 minutes to replicate itself how can the genome of the fruit fly drosophila be replicated in only three minutes? Drosophila DNA contains more origins of replication than E. coli DNA.
Please help!!!!
c.) explain why that happens?
d.) How old is a rock sample that contains uranium-235 and lead-207 in equal amounts?
Uranium is used to determine a rock's age.
The uranium in rocks decays at a steady rate, producing subatomic particles and turning into lead. Scientists estimated the age of the globe at 4.6 billion years by examining the uranium-to-lead ratios in the oldest rocks on the planet. U-235 dating reveals that a rock is 2.84 billion years old.
Why, given that rocks are so old, can the age of rocks be determined using uranium-238?
The age of the rock increases with lead content. Since uranium-238 has a lengthy half-life, only the oldest rocks can be dated. Because so little of the uranium will decay, this method is unreliable for determining the age of rocks that are younger than 10 million years.
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An object who’s volume is deterred through displacement
What’s the Object called?
An object who’s volume is determined through displacement is called an irregular solid.
What is an irregular object?
An object is said to be irregular if the object can not be measured evenly. There are a lot of irregular objects in our surroundings such as a stone. In this case, we have to obtain the volume of the object by the displacement method.
In this case, the, what we have to do is to use a measuring cylinder to measure a given volume of water. The irregular object is now added and the volume of the water displaced is measured.
The volume of water displaced is the volume of the object.
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A lake near a large city became polluted due to domestic and industrial waste being released into it. The polluted lake water affected the ecosystem in and around the lake. A group of residents took up an initiative to protect the lake from further pollution. They began a competition among the local residents to design a solution for the problem and to create awareness among the people. Which of these solutions would be the best while making sure economic and social concerns are considered? A. building a treatment plant to treat waste before it is released into the lake B. using eco-friendly products and preventing entry of waste water into the lake C. adding substances to the lake water to dissolve chemical compounds D. cleaning and filtering the lake water regularly using proper equipment
The best way to solve the problem of water pollution in the lake while making sure economic and social concerns are considered is building a treatment plant to treat waste before it is released into the lake; option A.
What is pollution?Pollution refers to the presence of harmful unwanted substances in the environment.
There are several forms of pollution:
land pollutionwater pollutionair pollutionWater pollution occurs when harmful, substances are introduced into the water by man.
The sources of water pollution include domestic and industrial waste being released into the water. Water pollution makes water unfit for drinking, and swimming, and uninhabitable for aquatic organisms.
Considering the polluted lake near the large city.
The measures for preventing the pollution of the lake include:
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how many percent of the energy present at one level is available to the next trophic level
Energy is transported from lower to higher trophic levels through the food chain or web. However generally only about 10% of the energy in one level is available for the next level.
Used in metabolic processes or released into the environment as heat. This loss of energy explains why there are rarely more than four trophic levels in a food chain or web. With the 10% rule, each trophy level can only give 10% of its energy to the next level. The remaining 90% is used for survival growth, and reproduction and is lost to the environment as heat.
All energy pyramids begin with the transmission of energy from the sun to the first nutrient-level producers. The first, lowest level contains green plants, which are producers. Plants or their products are consumed by second-level organisms that are herbivores or herbivores. At the third level, primary carnivores or carnivores eat herbivores. At the fourth level, secondary carnivores eat primary carnivores.
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Draw the nucleus and
label the following parts:
the nuclear membrane,
nucleolus, and chromatin.
Answer:
Diagram of a nucleus with the following structures:
Nuclear membrane
Nucleolus
Chromatin
what is a possible outcome of reproductive isolation? group of answer choices convergent evolution the emergence of two different species the emergence of one deme gene flow
Due to the fact that reproductive isolation is essential to speciation, it frequently leads to the formation of two distinct species from a single ancestor under various environmental circumstances.
Reproductive isolationOne of a species' distinguishing characteristics is reproductive seclusion. According to one definition of reproductive isolation, barriers between various species prevent them from mating and having healthy offspring. Reproductive isolation can happen as a result of physiological processes, behavioral, and evolutionary reasons. It takes place during speciation. The process of speciation is how populations develop into separate species. When populations are divided by obstacles or distance, this can happen. The Galapagos bird is one illustration of this. In the Galapagos archipelago, the finches live apart from one another on several islands.
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True or False. The relationship between the protists that cause human malaria and humans is an example of commensalism.
The answer to the statement " The relationship between the protists that cause human malaria and humans is an example of commensalism " is false
Understanding the relationship between the malarian parasites and humans.The simple reason why commensalism does not exist between malarian parasites and humans is because, commensalism is not a biological association where an organism cause diseases or has any detrimental effect on the other other. Rather, in commensalism, on of the organisms benefit from the other, and the other commensal does not benefits or harm the other.
However, the relationship which exist between malarian parasites and humans is parasitism. This is because the protist, feed on nutrients from the the body of the host, humans and cause disease known as malaria.
So therefore, the Plasmodium species are the protists which causes malaria to humans and this association is known as parasitism.
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While _______ decisions will generally need to be processed via the ______ system in our brains in order for us to reach a good decision, with ______ decisions, heuristics can allow decision makers to switch to the quick, _____ system.
While Non-programmed decisions will generally need to be processed via the reflective system in our brains in order for us to reach a good decision, with programmed decisions, heuristics can allow decision makers to switch to the quick, reactive system.
What are programmed and non-programmed decisions ?
Programmed decisions are those decisions that occur more frequently and are quickly executed, almost instinctly, without needing much of a thought process, by what we call the reactive system; they are repeated over time. while non-programmed decisions are those that present unusual or new situations and require a deeper reflection and understanding of the issue. Those are processed via the reflective system in the brain; they hardly re-occur and mostly spontaneous.
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is an enzyme secreted by certain bacteria that cleaves the beta-lactam ring of penicillin and cephalosporin and thus provides for resistance against the antibiotic.
β-lactamase is an enzyme secreted by certain bacteria that cleaves the beta-lactam ring of penicillin and cephalosporin and thus provides for resistance against the antibiotic.
Penicillin is an antibiotic that provides resistance against a large number of bacteria. It was the first antibiotic to be discovered by Alexander Fleming. Like all other antibiotics it may kill the bacteria or suppress its growth. There are different types of penicillin that are used to treat different types of bacterial infections.
Cephalosporin is also an antibiotic used against gram positive and negative bacteria. It was originally developed from a fungus called Acremonium.
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(100 points) Species that form somewhere else that enters and disrupt a native ecosystem are called:
Artificial reefs
Invasive species
Global warning
Climate change
(Brainliest for best answer.)
Answer:
Invasive species
Explanation:
it is an organism that is not native to the area; also known as a species that invades
yw! :)
Answer:
Its B
Explanation:
I took the test
Why did the great taxonomist C. Linnaeus include humans in the order of primates?
Answer:
Humans can move on their own and are placed in the animal kingdom. Further, humans belong to the animal phylum known as chordates because we have a backbone. The human animal has hair and milk glands, so we are placed in the class of mammals. Within the mammal class, humans are placed in the primate order.
quick question, if mass of an object decreases then does that mean the rate of diffusion was slowing down, staying the same, or going faster?
The mass of particles affect the rate of diffusion; hence a decreased mass particles implies that diffusion rate will be faster.
Understanding how the mass of particles affects diffusion rate.The mass of particles of substances are important factor in the diffusion processes. Substances or particles which a smaller masses will quickly or faster when diffusion is going on. When the particles are of a bigger mass, the particles will result in a lower diffusion rate
That being said, diffusion is the movement of substances from a region of higher concentration to region of lower concentration. An example of a diffusion process is the movement of gas particles perfume from its container to a room where it is sprayed or released.
So therefore, if the mass of an object is reduced, the diffusion rate will be faster.
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explain how a change in an abiotic or biotic factor might affect a community
Biotic factors affect communities because they comprise animals and plants and microbes which are a necessary part of our environment whereas abiotic factors affect the ability to survival and reproduction of an organism.
How does abiotic or biotic factors affect the environment?Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and the diversity of consumers also affect an entire ecosystem. Abiotic factors affect the capacity of organisms to survive and reproduce. Abiotic limiting factors limit the growth of populations. The abundance and distribution of organisms in an ecosystem are affected by biotic factors, which involve living organisms. the appearance of new predators: in balanced ecosystems, predators and prey have developed together. the arrival of a new predator will disrupt the numbers of prey and other organisms. Biotic factors that affect communities; moisture levels: animals and plants are adapted to growing at the moisture levels available; soil pH and mineral.
so we can conclude that biotic factors comprise of living organisms that affect a community's availability of organisms for food whereas abiotic factors are needed by the organisms for growth.
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Using the table on the right as a guide, answer the following questions about light-independent reactions.
Describe the process of light-independent reactions.
What are the products of light-independent reactions?
A table entitled light-dependent reactions is shown. The requirements are light, energy and water. The site is the thylakoid membrane. The process is light energy splits water and excites electrons in chlorophyll. A T P and N A D P H are produced. The products are A T P, N A D P H, and oxygen.
The products of light-independent reactions include the following:
GlucoseNADP+Water (H₂O).What is photosynthesis?Photosynthesis simply refers to a biological and chemical process through which some living organisms such as green plants (autotrophs) convert the light energy (sunlight) that is received from the Sun into chemical energy, in order to enable them make their food.
The stages of photosynthesis.Generally speaking, there are (2) main reactions that make up the process of photosynthesis and these include following:
Light-dependent reactions.Light-independent reactions.What are light independent reactions?Light independent reactions can be defined as a type of photosynthetic reaction that takes place in the stroma of the chloroplasts of green plants (autotrophs) and it requires the following necessary inputs:
Carbon dioxideAdenosine triphosphate (ATP)NADPHAdditionally, the outputs (end products) of photosynthesis include the following; NADPH, adenosine triphosphate (ATP), and oxygen.
In this context, we can reasonably infer and logically deduce that water (H₂O), glucose, and NADP+ constitute the products of every light independent reactions.
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Claims Evidence Reasoning Make a
claim about how a nation might be affected
if another nation did not follow agreed-upon water
rules. Provide evidence to support your claim, and
explain your reasoning.
Claim- The human activity of other nation of improper uses of water and disposal of waste causes negative effects on the other nation.
Evidence- According to the news video, the wastes made a layer on the water surface and floated to the other nation that affected the aquatic organisms. It causes pollution in the water.
Also one study reported that for misusing of water of one nation, the ground water level continuously falling down in other nation.
Reasoning- Based on the evidence, it can be concluded that the improper disposal of wastes and misuse of water changes the environment of other nation. It affects the aquatic organisms and also the human lifestyle.
What is Claim-Evidence-Reasioning?
Claim
A claim is a declaration that responds to a query. Typically, it will consist of just one sentence. Transition words like "because" should not be used because the claim contains no justification, logic, or supporting data.
Evidence
The information utilised to back up the assertion is the proof. Depending on the question and/or lab, it may be either quantitative or qualitative. Even a student-made data table could serve as the basis for the proof. Only facts that directly refute the assertion should be included in the evidence provided by students.
Reasoning
The justification provides the "why" and "how" the evidence substantiates the assertion. A description of the underlying scientific idea that gave rise to the evidence or data should be included.
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How can a piece of fruit be compared to planet Earth?
Answer:
the layers of the fruit are like the layers of the earth
Explanation:
Which term best describes a severe weather event characterized by heavy snowfall, strong winds, and reduced visibility?
A.
cold front
B.
lake-effect snow
C.
blizzard
D.
thunderstorm
5. the fast-food smoothie consists primarily of added sugars, resulting in a product with less volume than the homemade fruit smoothie. approximately how much more volume is in the homemade smoothie than in the fast-food smoothie? (hint: use grams per serving to determine this answer.)
From the Intake Spreadsheet report Day 2, 1 serving of this recipe exists 747 grams; from the Intake Spreadsheet report Day 1, 1 serving of the fast food smoothie contains 428 grams. 747 divided by 428 = 1.75 times the volume.
Is fast-food smoothie are actually healthy?Smoothies frequently contain a lot of fiber due to their high fruit and vegetable content. This can assist in filling the gap between your current consumption of fiber and the quantity suggested by the USDA, lowering your possibility of formulating chronic diseases and enhancing your general health.
This is due to the high levels of sugar, salt, saturated fat, trans fats, processed components, and calories in the majority of fast food. Additionally, it typically has few or no antioxidants, fiber, or other nutrients.
What are the disadvantages of smoothies?Overconsumption is a risk at all times. We must exercise portion control.Limit the amount of fiber you give. Although fiber is necessary for our bodies, it might be somewhat ground up during the blending process.Not as long as entire foods in satisfying us.Premade foods are frequently loaded with sugar.One serving of this recipe weighs 747 grams according to the Intake Spreadsheet report for Day 2, whereas one serving of the fast-food smoothie weighs 428 grams. The volume is 1.75 times what 747 divided by 428 equals.
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