Units measured by the amount of energy released when nutrients are broken down are known as
a. metabolism
b. calories
c. nutrients
d. carbohydrates

Calories

Explanation:

Metabolism is the chemical process that occurs within a living organism that keeps it alive

Nutrients are a substance that provide nourishment essential for growth

Carbohydrates are a biomolecule that consist of carbon, hydrogen, and oxygen

the gravitational force on an object increase as the mass of an object also, im not going to report you, but this question should be under the science category, not health

what effect does exercise have on the nervous system?

the answer is c.