BIOLOGY HIGH SCHOOL

5. Which of the following must an animal do to survive?- Reproduce
- Breath air
- Maintain homeostasis
- dig a burrow

Answers

Answer 1
Answer: The correct answer is Breath air. Reproduciton, homeostasis, and burrow digging, are not necessary for the survival of a single animal. 

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When light energy excites electrons in photosystem II, where do the electrons to replace them come from?

Answers

the electrons are already there in photosystem II, they are just in a cloud that is around the positive nucleus! 

Which cell structures are sometimes found attached to the endoplasmic reticulum

Answers

Ribosomes.
The outer face of RER ( rough endoplasmic reticulum) is studded with Ribosomes.

What two behaviors that allow organisms that stay in Masssachusetts all year to survive seasonal changes?

Answers

-Hibernation. Reduction of body metabolism, which allows for low oxygen and energy consumption.
-Preparing supplies for the winter, in the form of food or fat.
-In case of cold-blooded animals finding shelter, where temperature will be high enough fo them to survive.

How do guard cells maintain homeostasis?

Answers

Answer:

Explanation:  Guard cells in the plants prevent water loss from it in cases of soil dryness or high temperature by closing themselves. If this does not happen, water will keep leaving the plant by the process of transpiration in these harsh conditions and the plant will not have the important medium for the homeostasis process to continue.

How do the light-dependent reactions and light-independent reactions work together?

Answers

Answer:

In the light-independent reactions or Calvin cycle, the energized electrons from the light-dependent reactions provide the energy to form carbohydrates from carbon dioxide molecules. ... In addition, several enzymes of the light-independent reactions are activated by light.

When is a mutated gene most likely to be passed along to offspring over several generations? a. when the mutation is beneficial
b. when the mutations are substitutions
c. when there are multiple mutations in a gene
d. when the mutation is harmful

Answers

C
There is your answer
The correct answer is C because they are more likely to get passed on if there are more of them
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