The purpose of a control group in an experiment is 1)to prove the hypothesis
2) for comparison to the other test groups
3)to prove the prediction
4)to control the dependent variable

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.