In living systems, the predominant organic molecules are , which are largely responsible for the structure, behavior, and unique qualities of a cell.

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

Anybody who knows ap biology, can you friend or message me

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems