Gas exchangeis the delivery of oxygen, so im guessing it takes place in the bloodstream
Answer:
Vitiligo and leucoderma are two well-known skin coloration disorders characterized by a loss of skin coloration. They are different though. Vitiligo occurs in people who are born with normal skin pigmentation as opposed to albinism when an individual is born without skin pigmentation (lack active melanocytes).
Explanation:
In each ventricle is a blood vessel network called the choroid plexuses that produces cerebrospinal fluid. This blood vessel consists of ependymal cells
Answer:
C. they are all traits that you can only learn, not be born with
Explanation:
You cant be born with anything. You have to learn with time, as you get older and have more experience.