Zoology - Evolution Question with Solution | TestHub
The natural selection that acts against change in the form and keeps the population constant through the time is
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Natural selection of Neo-Darwinism operates through differential reproduction instead of survival of fittest. According to differential reproduction, best-adapted organisms reproduce at a higher rate and produce more offsprings than those which are less adapted. Three types of natural selection is observed and they are:
1. Stabilizing selection
2. Directional selection
3. Disruptive selection
Stabilizing selection is operating when the extreme phenotypes contribute fewer offsprings to next generation than those at the average phenotype. When selection acts to eliminate both extremes from an array of phenotypes. The frequency of the intermediate type which is already the most common, is increased.
