12. When you eat an apple you are acting as a(n) — a. Primary consumer
b. Secondary consumer
Primary carnivore
d. Primary producer

What are two reasons for why a species might disappear from the fossil record?

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope