Answer:
A
in glaciers and stuff like that
Explanation:
The blood would get pumped to the bottom of the ventricle, and no blood flow would occur.
Answer:
As air pressure decreases oxygen continues to account for about 21% of the gasses in the air as it does at sea level. But, there is less oxygen because there is less of all of the air's gasses
He noted the beaks of the finches in the Galapagos Islands.