How many molecules of DNA would result from one molecule after four cycles of PCR?

A. 16

B. 4

C. 2

D. 32

Write some similarities and differences between the inner planets and the outer planets

As the rate of a resource's use decreases, its A. usefulness increases. B. sustainability decreases. C. usefulness decreases. D. sustainability increases.

Hilary put some ice cubes in a glass of water, and the ice cubes melted. What is the best evidence she can use to show that the melting of the ice is a purely physical change and not a chemical change?' A.

An individual eats a hamburger. Which two systems must interact to transfer the nutrients in the hamburger to human muscle tissue?

What is the most scientific term for cell?

Which method is a way of obtaining natural gas? (APEX)

What describes the cell cycle

Which is an example of commensalism in the tropical rainforest? a. parasites feed on the sloth's body. b. sloths are food for other animals. c. algae live in a sloth's fur, providing it with camouflage. d. insects lay eggs in the sloth's waste.

Most of the energy in the United States comes from: fossil fuels hydroelectric plants solar power nuclear power

Georgia's salt marshes have been identified as one of the most extensive and productive marshland systems in the United States.