Answer E: all of the above
I think that the answer is behavioral isolation because this isolation helps members of the same species identify each other as mates and that's what the emperor penguins do.They call their mate with a specific sound.I'm not 100% sure tho
Answer:
The Tunica Media
Explanation:
Usually referred as the middle layer, it helps regulate blood flow and pressure.is a support for the vessel.Hope this helps:)
The system of organs responsible for getting food into and out of the body and for making use of food to keep the body healthy