Replace dead or damaged muscle cells Question 4
1 pts
Organisms must respond to changes in their environment in order to survive. Which of the
following is an example of a physical response to an environmental change?
O a bear hibérnating in winter
O a bird migrating when the season changes
a dolphin performing tricks for food at an aquarium
O a plant turning so that its leaves face the sunlight
Question 5
1 pts
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a bird migrating when the season changes  

Explanation:

Both of the top answers make sense to me, but if I had to choose, I would pick a bird migrating when the season changes.

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

youre right there are