Directional selection is a type of natural selection that favors one extreme phenotype over the mean or another extreme. Examples of directional selection include giraffes that have long necks and the darkening of London's peppered moths after the Industrial Revolution.
Stabilizing selection, also known as purifying selection, is a type of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait value. An example of stabilizing selection is birth weigh in humans.
Disruptive selection is a type of natural selection that shows a preference toward the reproduction of genetic material at the extremes within a population.One of the most studied examples of disruptive selection is the case of London's peppered moths.
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Answer: sympathetic nervous system prepares body for intense physical activity and known as flight or fight response whereas parasympathetic nervous system is almost the opposite, it relaxes the body and slows many human functions
Explanation:
I believe it is <u>instinct </u>that is the behavior of the caterpillar building a cocoon.
Helo i think the answer to this question is trait
To show he presence of a trait you would need to follow it through multiple generations in a pedigree.
