Differentiate between light and electron microscopy.

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

What substance acts to prevent sudden ph changes in bodily fluids?

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.