Natural selection is based on all of the following except
question 18 options:

a. genetic variation exists within populations. b. the best-adapted individuals tend to leave the most offspring.

c. individuals who survive longer tend to leave more offspring than those who die young.

d. populations tend to produce more individuals than the environment can support.

e. individuals adapt to their environments and, thereby, evolve.

ocean expansion, global warming is melting icebergs and causing water levels to rise.

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.