respiration and excretion

bringing nutrients into the body.

the removal of waste products from the body.

the pressure of blood against the wall of an artery.

The goal is to get CO2 from the air and exhale O2 from the body.

The goal is to get O2 from the air and exhale CO2 from the body.

The goal is to get NO5 from the air and exhale C6H12O6 in addition to Rubidium.

Active Transport

Diffusion

Osmosis

Cellular Respiration

Mitosis

The flap of tissue that covers the trachea when swallowing.

The flap of tissue that covers the Pharynx when swallowing.

The flap of tissue that covers the esophagus when swallowing.

If you ignore this question and choose one of the other answers there is a 1/3 chance you will get this question correct. This answer choice will not be counted as correct if chosen, but if it really tickles your fancy, go right ahead and choose this one.

Flexible air sacks in the lungs where gas exchange occurs between capillaries.

Protrusion of mucus on the wall of the colon.