1. Contraction of the diaphragm causes:

A. a person to exhale.
B. the size of the chest cavity to increase.
C. air to flow from the lungs to the outside.
D. compression of the lungs.

is it B

2. The function of the large intestine is to:
A. supply enzymes for digestion.
B. remove water.
C. absorb nutrients.
D. produce vitamins.

is it C

3. An example of assimilation is the:
A. synthesis of carbon.
B. synthesis of proteins.
C. hydrolysis of water.
D. hydrolysis of oxygen.

is it A