explain
below the increase in the number of black squirrels using ideas of natural
selection. Write about: variation,
competition, survival and reproduction
.


Sagot :

Black squirrels may increase in a certain area due to natural selection because of the ground below it being dark so the squirrels would adapt to the terrain, making them harder to see by predators.
EXAMPLE: if a light fur colored squirrel is on a dark terrain, an Owl or Large bird could easily see the color differentiation and notice that it is a small land organism (prey).
So the squirrels kin would evolve in the sense that they would have darker fur to match their inhabitance

Evolution is defined as the change in heritable traits in a biological population over several generations.

Mechanisms of Evolution

  • Natural selection is defined as the process by which living organisms adapt and change based on environmental conditions.

  • For example, in an industrial surrounding having populations of black and white squirrels can show natural selection. Black squirrels will camouflage with the black smoke and will be naturally selected over white squirrels.

  • Genetic Variation is defined as the change or difference in the genetic sequence of populations. Genetic variation leads to natural selection, a mechanism for evolution.

  • Survival of the fittest is a term that originated in the Theory of Evolution. It states that the organisms better suited to the environment will have higher chances of survival and reproduction.

  • Also, the reproduction mode known as syngenesis leads to genetic diversity among organisms. Thus, it also contributes to evolution.

Thus, natural selection, genetic diversity, and survival of the fittest are the mechanisms of evolution.

Learn more about evolution here:

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