Which of the following is one of the chemical building blocks of cells? a. water c. air b. food d. carbohydrates

d. carbohydrates.

Explanation:

Sugar-consisting molecules. As a source of energy and energy storage cells employ carbs. The carbohydrates in the cells of an organism are broken down to release the stored energy.

Simple carbohydrates

Composed of one or a few molecules of sugar. Examples of simple carbs are table sugar and fruit sugar.

Complex Carbohydrates

Extra sugar from an organism may be preserved as complex hydrates of carbon. They consist of hundreds of molecules of sugar.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.