Assume that two species are coexisting in the same environment. species a has little gene pool variation, whereas species b has great variety in its gene pool. during a dramatic environmental change, which event is most probable? a. species a and b will merge into one species. b. species a and b will endure great surges of mutations. c. species a will evolve, whereas species b will have few surviving members. d. species a will become extinct, whereas species b will have surviving members.

Which measure of an earthquake depends on how close you are to the focus?

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.