Which structures are the basis of life for all living things?

A.

muscle tissues

B.

cells

C.

nuclei

D.

cell walls

Carbohydrates are composed of which three elements? A. carbon, nitrogen, and phosphorus B. oxygen, hydrogen, and nitrogen C. carbon, hydrogen, and oxygen D. oxygen, sulfur, and phosphorus

If you get drowsy while driving it is best to:

The inability of a sperm cells to move normally could prevent the production of offspring by interfering with

This is the attraction between molecules of different substances

Which of these is not an organism? a) lungs b) bacteria c) mold d) human

Which layer of the atmosphere does all weather take place?

A salt is added to a solution of water. Which physical property of the water is most likely to change?

When the moon is between the Earth and Sun it cannot be seen and is called a ___ moon.

Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. this is an example of how protein is used for: a. maintaining fluid and electrolyte balance. b. building antibodies. c.

Identify the fuel that could be classified as a nonrenewable or renewable resource. A) biomass B) geothermal C) wind D) tidal