Which of the following is an example of adaptation?
a) a rabbit population in which all of the members change fur color from brown to white as the seasons change.
b) a butterfly population where each individual makes more of an enzyme for processing plant toxins as its exposure to toxic plants increases.
c) an eagle population where adult eagles develop a tolerance for invasive mites over five years.
d) a fish population in which the average skin brightness decreases over several generations in the presence of predators.

If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

What is the difference between a scientific hypotheses and a scientific theory?