Which of the following is true of archaebacteria? they are multicellular. they are eukaryotic. they have chlorophyll. they tend to live in extreme environments.

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen