all of these are examples of random evolutionary processes except \na. \nan earthquake divides a single elk…

all of these are examples of random evolutionary processes except \na. \nan earthquake divides a single elk species into two populations, forcing them to no longer interbreed. \n\nb. \na mutation in a flower plant results in a new variety. \n\nc. \nan especially long winter causes a group of migrating birds to shift their home range. \n\nd. \na mutation results in a population of trees that spread their seeds more widely than their peers, causing their population to grow.

all of these are examples of random evolutionary processes except \na. \nan earthquake divides a single elk species into two populations, forcing them to no longer interbreed. \n\nb. \na mutation in a flower plant results in a new variety. \n\nc. \nan especially long winter causes a group of migrating birds to shift their home range. \n\nd. \na mutation results in a population of trees that spread their seeds more widely than their peers, causing their population to grow.

Answer

Brief Explanations:

To solve this, we analyze each option:

  • Option A: Earthquake (a random event) causing geographic isolation (allopatric speciation, random evolutionary process).
  • Option B: Mutation is a random change in DNA, leading to new variety (random evolutionary process).
  • Option C: Long winter (a random environmental event) causing birds to shift home range (random evolutionary process as the winter length is unpredictable).
  • Option D: The mutation here leads to a beneficial trait (spreading seeds more widely) that increases population growth. This is natural selection, which is a non - random process as it favors traits that increase fitness. So this is not a random evolutionary process.

Answer:

D. a mutation results in a population of trees that spread their seeds more widely than their peers, causing their population to grow.