Why do O2 and CO2 pass through the plasma membrane? A. They are nonpolar and soluble. B. They are facilitated by protein. C. They are "pumped" through. D. They undergo pinocytosis.

An unknown galaxy has a large flattened core. Which of the following classifications would best fit this galaxy's description? Irregular Spiral Lens Elliptical

Which is sometimes considered a combined component of fitness?

The diagram shows Virginia's watersheds. Which watershed is the largest in Virginia? James Yadkin Chowan Big Sandy

All of the kapok trees that live in the Amazon rain forest make up a A) biome. B) community. C) ecosystem. D) population.

This is the attraction between molecules of different substances

An ___ is a narrow strip of land connecting two larger land areas.

A survey on the Pacific coastline of California shows that kelp is currently being harvested faster than it can grow back. How would this resource be classified? A) Renewable B.) Nonrenewable C.) Potentially renewable D.) Primarily nonrenewable

A psychrometer is used to determine which weather variables?

Why do we can't sneeze without closing our eyes.

What begins when a neuron is stimulated by another neuron or by a stimulus in the environment?