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Llana [10]
3 years ago
5

The neurotransmitter acetylcholine

Biology
1 answer:
marta [7]3 years ago
6 0

Answer:

<h3>Option D is the correct answer. </h3>

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When a population bottleneck occur it means that for some reason (i.e. environmental events) the size of a population is largely reduced. This leads to reduction of the genetic variation in that new smaller population. When a bottleneck occur, the founder effect is normally seen, which is that one population is established by a small group of a previously larger population leading once again the genetic variation, now though with a bigger population, to be very reduced.
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