(select all that apply.) the four classes of organic molecules are carbon carbohydrates polymers lipids nucleic acids amino acids proteins fatty acids

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Give two examples of what would occur if one of the pairs did not match or had an extra chromosomes. explain how this might occur, and if it would be dangerous to the individual. fast.

Vessels draining the myocardium of the heart, open primarily ,into which chamber?