Question

Define:1.natural selection 2.accidental selection

Answer 1

here is the answer for your question

1) Natural Selection

process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin, and it is now regarded as be the main process that brings about evolution.

2) Accidental Selection

I won't give a definition but another example would be a volcano erupts and destroys most of the species on an island and most of the individuals of a species. So the unusual things about an individual would be passed onto its descendants but would not be diluted out of the population by what were the normal genes in the population before, and so that becomes common in the population through inbreeding of the remaining individuals. And the remaining species fill in the spots over time that the extinct species had before.


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Answer 2

Natural selection is a process by which species of animals and plants that are best adapted to their environment survive and reproduce, while those that are less well adapted die out. Natural selection ensures only the fittest survive to pass their genes on to the next generation.

Accidental selection is the process of evolution in a subset of a species due to circumstances like a natural disaster.