7. most rock pocket mouse populations have sandy-colored fur, which is
consistent with the light color of the desert rocks and sand on which
they live. on the other hand, dark-colored rock pocket mouse
populations have been found living on black, basaltic rock formations
caused by geologic lava flows. what is the best explanation for these
facts? discuss both. *

Melissa lives in a town called greendale. she discovers that when she lights a match and holds it near her kitchen faucet, the little flame grows into a larger fire. melissa is surprised because she thought the water would extinguish the flame rather than ignite it further. her mother tells her that the water might be contaminated with dissolved methane, a primary component in natural gas. melissa investigates the matter and finds that cases of methane contamination started shortly after a company began fracking for natural gas in the area. based on this information, which three statements are plausible consequences of fracking in greendale?

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

How many chromosomes are in a gold fish?