The human immune system defends the body from pathogens. which of the following are parts of the human immune system ( need asap)

a.) skins, neurons, muscle cells, pancreas
b.) mucous, urine, kidney
c.) skin, lymph nodes, white blood cells, and spleen
d.) white blood cells and red blood cells

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

Why would a drug the damages capsids treat a viral infection