Nitrogen is made available in a useful form for animals in the A. fertilizers they absorb. B. plants they eat. C. air they breathe. D. rainwater they drink.

Photosynthesis in the earth's forest produces about half of the oxygen in the atmosphere. Photosynthesis in the earth's oceans produces the other half of the oxygen in the atmosphere.

Primary succession is most likely caused by what?

What would happen if s-phase did not occur before mitosis?

17. Holds DNA and directs function of the cell.

Two conditions related to cardiac compromise are angina pectoris and myocardial infarction. in comparing the two, remember that: a. angina pectoris usually includes other symptoms, such as pale, sweaty skin. b.

List 5 examples of matter and five examples that are not matter. Explain your answers.

List the essential elements of ALL graphs (no matter what type).

On control for someone who has swallowed poison. O A. True O B. False Is this true or false?

The process by which plants convert sunlight into chemical energy is cellular respiration diffusion mitosis photosynthesis

Which structure is an example of a hinge joint?