... a diet consisting of carbohydrates, proteins, fats, vitamins and minerals.

... a diet consisting of fats, sugars, fruits, dairy and carbohydrates.

...the rate at which chemical reactions take place in a person's cells.

...how your breathing rate increases when your tired.

...the rate of diffusion within a person's cells.

A system where white blood cells in the body produce antibodies for specific pathogens and remembers them for later use preventing infection in the future.

A systen involving all of the organs in the body to destroy pathogens.

A system where nerve cells in the nervous system send electrical impulses around the body the body when