9) Choose the best answer. Identify the process by which living organisms stay the same.
A. homeostasis
B. response
C. heterotrophs
D. ectotherm
E. experimentation

10) Choose the best answer.

The cell's ability to maintain the correct amount of water and minerals in it is an example of .
A. heterotrophs
B. response
C. homeostasis
D. ectotherm
E. catalyst

11) Choose True or False.

A species will become extinct if all its individuals stop reproducing.

A. False
B. True

12) Choose True or False.

A dog and cat can reproduce together.

A. False
B. True