Question

1. In terrestrial vertebrates, what is the advantage of having the surfaces for gas exchange embedded deep in lung tissue?

2. The capillaries that lie in close contact with alveoli are branches of what major blood vessel we have learned?

3. The confluence (joining together) of these capillaries forms what major blood vessel we have learned?

4. More than any other organ in the body, the liver is most often damaged by excessive intake of substances such as alcohol, vitamin A, and some prescription drugs. Why would this be?

Answer 1