What is the primary distinction of being an animal?

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

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.