Answer:
d. mechanical isolation
Explanation:
Mechanical isolation is a prezygotic barrier in which there is a physical barrier that prevents two populations of a species from mating successfully as a result of morphological differences.
This reproductive isolation can be seen in the Euhadra species of Japanese land snail, where snails with right hand shells and left hand shells are unable to physically corpulate successfully.
Nitrogen,<span>The atmosphere is composed of ~78% nitrogen and ~21% oxygen, with small amounts of other gases. The bulk composition of the earth by weight is mostly, iron, oxygen, silicon and magnesium, in that order, with all the other elements making up only about 5% of the earth's weight.</span>
Answer:
An abiotic factor is a non-living part of an ecosystem that shapes its environment.
The development of adaptive traits is a result of natural selection, one of the main mechanisms underlying evolutionary change.
Understanding natural selection is also becoming more and more important in real-world settings, such as resource management, agriculture, and medicine. Even among people with postsecondary physical education, studies show that natural selection is generally very poorly understood.
learn more about natural selection here:
brainly.com/question/9830102
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