Answer:
B. The population must be very large.
Explanation:
C because our bodys are mixing chemicals
Because the soil didn't have the same nutrients it has now due to lack of decomposition of other plants and animals.
<span>the study of living organisms, divided into many specialized
fields that cover their morphology, physiology, anatomy, behavior,
origin, and distribution.</span>
A. Break down sugars to use their energy directly
