What are two types of transport used to bring materials in and out of a cell

Diffusion is the spontaneous movement of a substance from an area of what

Explain how human impact on the environment has changed over time.

Mira analyzed oxygen and carbon dioxide in inhaled and exhaled air. She found that the percentages of both gases were different in each.

Is Scorpio a water sign?

I have an atom of an unknown element. It has a mass or 57 with 30 neutrons. This must be an isotope of what element

How do decomposers obtain energy?

How is parenting a lifelong job? Explain.

Frontal precipitation is most characteristic of the middle latitudes. frontal precipitation is most characteristic of the middle latitudes. a. True b. False

The offspring of two koalas develops a genetic disease. When scientists studied the parents' DNA, they found that both parents carried harmful recessive genes passed down from the exact same lineage.

On which of the following objects, all sitting on the ground together, does Earth exert a greater gravitational pull than a baseball? Check all that apply. A. A pencil B. An inflatable beach ball C. A truck D. A bicycle E. A camel