Which best describes the cell theory? scientists know all there is to know about cells, so the cell theory will not change. as technological advancements are made, the cell theory may change. a theory, once formulated, cannot be changed. the development of a synthetic cell has caused the cell theory to change.

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

Two critical interventions to turn around the opioid crises are:

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.