When air is inhaled, oxygen diffuses from the alveoli into the blood to be used for respiration by the body’s cells. Carbon dioxide is a waste product made by the body’s cells during respiration.
B . Excessive commercial fishing
Reason: the other options are good things this is the only bad thing
answer is D
antelopes with muscular legs are able to outrun their predators better than antelopes with poor muscle tone. they lived to reproduce .
I think it’s A if I’m not right I’m sorry
