The growth of organisms in an ecosystem can be limited by the amount of water and light the ecosystem receives.

a. True

b. False

Suppose an astronomer discovers a large, spherical-shaped body orbiting the sun. The body is composed mostly of rock, and there are no bodies sharing its orbit.

Water evaporates from a lake. Arrange the next steps of the water cycle in the correct order. Water vapor condenses to form clouds. Water flows down mountains and hills. Water falls as rain, snow, and sleet. Water joins streams or forms groundwater

Assume that the mutation rate for a given gene is 1 * 10-6 mutations per generation. For that gene, how many mutations would be expected if 500 million sperm are examined?

What characteristics are common among non-vascular plants? Name at least three.

How does the Newton meter demonstrate the law of action and reaction?

What is a distance determination? How is this done?

Gregor Mendel's research formed the basis of the field of genetics. dominance. recessiveness. selective breeding.

Which best describes the cell theory? A. Scientists know all there is to know about cells, so the cell theory will not change. B. As technological advancements are made, the cells theory may change. C. A theory, once formulated, can not be change. D.

If a element has 11 protons, what else is 11?

Why does your skin feel dry after you swim explain using osmosis