Question

non - random mating is observed in natural populations. why? random mating chooses the individuals least suited to the environment. random mating chooses the individuals best suited to the environment. individuals in natural populations choose to mate with those that are best suited to the environment

Explanation:

In natural populations, non - random mating occurs because individuals often have preferences. They tend to choose mates that are best suited to the environment. This is related to concepts like sexual selection and adaptation. For example, in some bird species, females may prefer males with more vibrant plumage as it can be an indicator of good health (and thus better adaptation to the environment). Random mating, on the other hand, does not have such preferences. But the statement that random mating chooses the least suited individuals is incorrect. Random mating is just a mating pattern without a bias towards or against certain traits related to environmental suitability.

Answer:

Individuals in natural populations choose to mate with those that are BEST suited to the environment.