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PSYCHO15rus [73]
2 years ago
10

What is "set point theory"? are toxins involved? describe how body size and homeostasis are related?

Biology
2 answers:
Lana71 [14]2 years ago
6 0
<span>The set point theory is when your metabolism adjusts to keep your body weight consistent. It says that humans have predetermined body weight or fat content and they body closely regulates your metabolism accordingly.</span>
guapka [62]2 years ago
3 0

Set point refers to the optimal weight range or body size that your body is designed to function. According to the theory, the human body fights bodily changes and tries to maintain homeostasis by altering body fat or metabolism. Our body can also be affected by other factors such as environmental toxins.

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Describe how dawin's theroy of evolution by natural selection can explain the spread of antibiotic-resistant microorganisms whic
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During a biology lab practical, students were required to identify a metal by its density. All the metals were painted green so
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Answer:

C) Re-do the measurements, several times, and take the average density before making a decision.

Explanation:

For the correct identification of the metal, weather its nickel or copper, Carl should repeat the experiment several times and take the average density before making the decision. It is important because it reduces the chance of error and ensure the data integrity.  The more the sample size is, lessen would be the error.  

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2 years ago
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A population of hummingbirds feeds exclusively on nectar from orchids. Two species of orchids exist in the hummingbirds' habitat
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Answer:

D

Explanation:

Natural selection is the differential survival and reproduction of individuals because of the differences in the phenotypic characteristics. It supports the fact that those organisms, which have phenotypic characteristic favorable to survive in the changing environment as compared to other organisms, and these traits will also be passed to the successive generations.

In the given situation, the hummingbirds those have adapted according to the needs, that is deriving nectar from either from short and long tubes nectar. Therefore, two phenotypic characteristics like short beak and long beaks will become dominant trait in the population of humingbirds as the intermediate beak hummingbirds will not be able to feed from either of the flowers.

<h2>Pls, Branliest!</h2>
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Arthropods periodically shed and discard their exoskeletons as they grow in a process called
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Answer:

A. The number of cells that are dying is balanced by the number of new cells that are being formed.

C. Harmful waste products may be accumulating.

D. The cells are likely running out of nutrients.

Explanation:

During the stationary phase, the number of viable cells remains constant. This may be due to a balance between cell division and cell death wherein the total number of newly formed cells and the cells undergoing death are equal.

Nutrient limitation is one of the several factors that make the microbial cells to enter the stationary phase. Depletion of nutrients slows down the population growth.

Accumulation of toxic waste products as it occurs during the growth of anaerobic bacteria also adversely affects the population growth.

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