Explanation:
option D is the correct answer ..
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Bottleneck is an example of a genetic drift that happens when the size of a population is severely reduced.
The hormone described above is the hormone Melatonin.
Melatonin is a hormone secreted by the pineal gland in the brain, which helps regulate other hormones and maintains the body's circadian rhythm. This rhythm is an internal 24 hour clock that plays a critical role when we fall asleep and when awake. When it is dark the body releases more melatonin.
<span>Plasmodium is a parasitic protozoan that needs two hosts for its propogation.</span>
