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Elodia [21]
3 years ago
6

Sleep, hunger, and thirst are all

Biology
2 answers:
ELEN [110]3 years ago
8 0

Answer:

responses to internal stimuli.

Explanation:

Arte-miy333 [17]3 years ago
3 0
The answer is c
hope hep
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How is the positioning of the frog's eye an adaptive advantage for the frog?
grandymaker [24]
It allows it to hide under but still be able to see above it to catch flies
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3 years ago
The concept map below shows the flow of energy and materials in photosynthesis and cellular respiration.
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You have not given the concept map. But I think it might be this one. So, according to this concept map, the answer should be B. H2O and CO2

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2 years ago
What kind of mutations were more beneficial ? Why ?
Alex
A mutation is a permanent change in the DNA sequence of a gene. This can be beneficial if the change gives a new function to or improves the function of that gene. 

<span>The above is a definition. But one must really define "beneficial". Some regard it as beneficial if it helps the specific individual who has it. Others would think it beneficial if it produced some survival advantage that insured more descendents for that individual. </span>

<span>It is the difference between a mutation that allowed for greater athletic ability, but a decreased desire for offspring, versus a more moderate athletic enhancement, but a greater desire for offspring. </span>

<span>The small percentage of ways to improve an organism, versus the near infinite ways of harming the organism, mean that most mutations are not going to be beneficial. At best, they will be "inconsequential" - such as a new shade of eye color, or a mole on a section of your skin. </span>

The populist notion of "powers" that can come from mutations is wildly inaccurate. Even assuming a minor power like the ability to see infra red radiation would take thousands upon thousands of mutations over vast amounts of time. A mutation for blindness is far more likely.

<span>It should also be noted that the traditional model of evolutionary theory no longer applies to man. We don't allow changes in our environment, and without such changes, there is no need for one trait more than another to predominate. After all, it is irrelevent that a mutation might allow for greater speed in running, when everyone drives a car.</span>
4 0
3 years ago
Earth has been warmer in the past than it is today.<br><br> True or false
TiliK225 [7]

False! Climate change

The Earth used to be way colder than it is today

5 0
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What happens during the<br>Calvin cycle?​
stepan [7]

Answer: The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase. Energy to fuel chemical reactions in this sugar-generating process is provided by ATP and NADPH, chemical compounds which contain the energy plants have captured from sunlight.

Explanation:

4 0
3 years ago
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