EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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even more cats with 12 cm long whiskers
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most cats with less than 12 cm long whiskers
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most cats with more than 12 cm long whiskers
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most cats with whiskers either less than or more than 12 cm long, very few with whiskers 12 cms
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Detailed explanation-1: -Stabilizing selection: Stabilizing selection occurs when the population stabilizes on a particular trait value and genetic diversity decreases.
Detailed explanation-2: -Artificial selection provides a model that helps us understand natural selection. It is a small step to go from humans selecting desirable traits in plants and animals to envisioning natural conditions acting selectively on populations and causing natural changes, especially over geological timescales.
Detailed explanation-3: -Graph 1 shows directional selection, in which a single extreme phenotype is favored. Graph 2 depicts stabilizing selection, where the intermediate phenotype is favored over the extreme traits. Graph 3 shows disruptive selection, in which the extreme phenotypes are favored over the intermediate.
Detailed explanation-4: -Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.