Answer:
Man-made
Explanation:
We are over harvesting the animals, so the reason for their extinction would be man-made.
I think the correct answer from the choices listed above is option A. Skin and nerve cells have different appearances and characteristics from each other, although they contain the same DNA because the genes expressed in inskin cells may not be expressed in nerve cells and vise versa.
Answer:
The emphasis on integrating molecular, cellular, systems and whole body function is what distinguishes physiology from the other life sciences.
Explanation: