Which statements is true about a cell. a. a cell is the smallest unit of an organism that is considered alive. b. a multicellular organism may contain trillions of cells. c. a living thing that consists of a single cell is a multicellular organism. d. organisms are made up of cells?

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

How does a gymnosperm prevent itself from pollinating the same tree