All matter on earth, both living and non-living, is made up of what?

Which of the following organisms do NOT belong in the domain Eukarya?

Diffusion is the movement of water molecules from an area of high solute concentration to an area of low solute concentration.

The following image of molecules represents which of the following types of transport? passive transport.jpg 

Suppose you are baking cookies and add baking soda to the mixture, which has a pH of 9. Which of the following is true based on what you learned about the pH scale?

When a biologist or other scientist speaks about the theory of evolution , what do they mean by the word theory ?

Cell membranes are primarily composed of what type of organic molecule?

The United States economy can be best described as a mixed economic system

According to data presented in lecture, maternal mortality has decreased in the United States since the 1980s.

According to functionalists, why is social placement or tracking of students beneficial to society?