Answer:
...
Explanation:
Well the arteries carry oxygen and your nutrients away from you heart, to ypur bodies tissues. The viens take oxygen poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen rich blood away from the heart to all the bodies tissues.
Answer:
a hygrometer consisting of a wet-bulb and a dry-bulb thermometer, the difference in the two thermometer readings being used to determine atmospheric humidity.
a hygrometer is an instrument for measuring the humidity of the air or a gas.
The Answer would most likely be A. The reason for that is because if there is a decrease in hunting the population would grow as long with the surplus of food. If there is no animals hunting them for food then the population would grow. So the first one is only the one that would kill them off.