With enough time and in the absence of other evolutionary mechanisms, genetic drift will a. reduce the genetic variation in a population b. increase the genetic variation in a population c. have no effect on the genetic variation of a population

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

When analyzing tree rings, what do scientists assume a thin ring indicates?

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade