When organisms die, most of the nitrogen in their tissues is

A. lost from the nitrogen cycle forever.

B. converted directly into nitrogen gas.

C. recycled by bacteria in the soil. D. released directly into the soil.

Which of the following statements summarizes the differences between active and passive transport? A. only active transport requires energy (ATP) and moves molecules from low to high concentration B.

What is the difference between a stable and unstable element

Is a rock a producer?

How does the surface area change when a large cell divides into smaller cellsthat have the same total volume

Why does dew usually happen at night? Because it is dark Because the sun is not out to evaporate the dew Because the moonlight pulls the water out of the air Because the temperature decreases at night

What acid precipitation and two examples of the negative effects of air pollution.

The orbital cavities, nasal cavity, paranasal sinuses, and the oral cavity are all located in what region of the body

The process in which glucose is broken down and atp is made

What does the Calvin cycle do

Imagine that a researcher is comparing the sequence of several protein-coding genes among mice, rabbits, and humans. She finds that, for most of these genes, the rabbit sequences are more similar to the human sequences than are the mouse sequences.