What time period is called the age of mammals?
a. the precambrian time

b. the mesozoic era

c. the paleozoic era

d. the cenozoic era

The term equestrian relates to which animal? bulls cows horses pigs

Resperation is a way to release carbon back into the atmosphere

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism