<span>any one of a series of three or more alternative or allelic forms of a gene, only two of which can exist in any normal, diploid individual. Origin of multiple allele Expand.</span>
A. The allele frequency of a population changes due to a bottleneck.
This is because genetic drift happens because of chances events such as founder effect of bottleneck effect
The human activities in addition to natural factors that can alter the terrestrial ecosystem is deforestation.
<h3>The effects of deforestation on food web</h3>
Deforestation is a the clearing of trees in a large area of land which can be purposeful or by nature.
Human activities that leads to clearing of trees include the following:
- dam construction and infrastructure development.
One of the negative effects of deforestation on food web is the reduction in food availablity. This is so because of the loss of biodiversity that are source of food to man.
The human activities in addition to natural factors that can alter the terrestrial ecosystem is deforestation.
Learn more about deforestation here:
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