Which statement describes the formation of galaxies?

A. They begin in nebulas.

B. Heat and gases contract.

C. Gravity causes stars to cluster.

D. Dust and gases contract.

a large naturally occurring community of flora and fauna occupying a major habitat, e. g. forest or tundra.

Carlos and Juan are trying to determine which type of soap solution will make the biggest bubbles. They are testing three different bubble solutions. They use 50 ml of each bubble solution and mix it with 100 ml of water.

Glucoses is a molecule that can move across the cell membrane. if the concentration of glucose is higher inside the cell than outside the cell, then what will happen by the process of diffusion

What connects the left and right sides of the brain?

Last year a tornado destroyed many trees in the forest. A few brown bears have been seen in a small town near where the tornado occurred. The brown bears have been seen in the town because A) someone is keeping them as pets.

How are viruses able to move between species?

The process by which a population becomes better suited to its environment is known as?

4. A tree dropping its leaves in the fall to conserve water and avoid freezing during winter is an example of?

Which is a single-celled fungus? A. mold B. mushroom C. alga D. yeast

Explain problems with using low-tar, low-nicotine cigarettes.