Which is an example of an organism?

A. a hickory tree

B. the stripes on a tiger

C. a beehive

D. a snake's heart


Which example shows an organism maintaining homeostasis?

A. a bacterium dividing into two

B. a chicken laying eggs

C. a person sweating on a hot day

D. a lizard changing color to avoid a predator


What do all four of these molecules have in common?

A. They dissolve in water.

B. They are found in living things.

C. They store energy.

D. They store and transfer information.