Name an animal that is a member of the phylum cnidaria, an animal of the phylum arthropod, and an animal of the phylum echinoderm.

Four types of motile cells in human body?

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.

How do living things obtain phosphorus