9. Which statement describes how DNA, RNA and proteins are related? a RNA copies DNA and uses the information to make proteins .
b. Protein produces DNA, which then puts RNA together.
c. DNA is made up of RNA and protein
. d. DNA and RNA are two different types of proteins.

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Cells destroy body cells infected by a virus or bacteria.