Which food items are typical of an herbivorous diet?

A)eggs, insects, fruit
B)nuts, leaves, berries
C)insects, worms, beetles
D)mice, snakes, birds
E)decomposed dung, rotted vegetation, soil bacteria

Which of the following is acquired outside of an animal's diet?

A)oxygen
B)organic molecules
C)chemical energy
D)essential nutrients
E)All the listed responses are needs that must be supplied through diet.

Animals need two types of organic precursors from their food, _____, to serve as the raw materials for the synthesis of larger organic molecules.

A)organic carbon and organic nitrogen
B)organic hydrogen and organic oxygen
C)organic carbon and organic hydrogen
D)organic carbon and organic oxygen
E)organic nitrogen and organic oxygen