Identify the requirements necessary for natural selection to occur. This includes: a) variation B) limits to...

Identify the requirements necessary for natural selection to occur. This includes: a) variation

B) limits to population growth c) differential reproductive success with respect to traits d) inheritance of traits e) time

Solutions

Expert Solution

Sol.

The requirements necessary for natural selection to occur includes:

(a) variation: genetic variation is necessary for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population. Genetic variation is caused by : mutation, random mating between organisms, etc.

(c) differential reproductive success with respect to traits: Those organisms who are having a good good trait and are more successful in reproduction than organisms having less beneficial trait are selected by nature.

(d) inheritance of traits: organisms being selected by nature must be able to inherit the same to the next generation.

(e) time: across a broad range of species, the research found that for major changes persist and accumulate, it took about one million year. So, time is a requirement for natural selection.

Hence, options (a),(c),(d) and (e) are correct answers for this question.

Option (b) is incorrect because for natural selection to occur there must be over reproduction of organisms so that fittest organism maybe selected easily.

gladiator answered 10 months ago

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