Which feature to maximize the volume of gases exchanged during internal expiration?
a. the level of oxygen in the blood
b. the level of carbon dioxide in the blood
c. the level of oxygen in the alveoli
d. the shape of the alveoli
e. the shape of the lungs

Andrew loves to go camping and hiking in the fall. about two weeks after his last camping trip, he noticed an expanding red, target shaped, rash on his arm. to avoid this illness, andrew should have select one: a. boiled his water before drinking. b. avoided contact with ticks. c. avoided contact with fleas found on mice. d. camped only in the spring.

Bulimia nervosa cannot be prevented, but it can be treated if diagnosed early. true or false?

Iused st ives green tea face scrub and washed it off, but i got a tiny taste of something when i licked my lips 30-60 seconds later? it's not likely that i actually swallowed anything, right? or that this will make me sick?