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Harman [31]
3 years ago
6

Which of the following is an observation made by Darwin that supports his theory of natural selection? A. All organisms that are

born survive. B. More organisms are born than can survive. C. Insects produce many offspring but produce few eggs. D. Insects never produce offspring.
Biology
2 answers:
shutvik [7]3 years ago
7 0
What supports natural selection is that more organisms are born that survive: so that only the fittest would survive. The natural selection then selects the strongest individuals to surive and procreate.
german3 years ago
3 0

Correct answer: B). More organisms are born than can survive

The Darwin theory of natural selection states that living things with beneficial traits give more offspring than others. This causes a change in the traits of living organism over time.

More individuals are produced in each generation that can survive, there is a phenotypic variation among the population and it is inheritable. Those individuals that are better suited to the environment can survive and are able to produce offspring.

Hence, the correct answer would be option B.


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Thinking creatively about evolutionary mechanisms, identify at least two schemes that could generate allelic polymorphism in a p
Ede4ka [16]

Complete question:

Thinking creatively about evolutionary mechanisms, identify at least

two schemes that could generate allelic polymorphism in a population except natural selection that favors heterozygotes.

<u>Select the two correct answers.</u>

-inbreeding among individuals in the population

-purifying selection against mutational variants of alleles in the population

-continuous migration of individuals with new alleles into the population

-mutations that do not severely affect viability and reproductivity

-genetic drift of alleles common in the population

-events leading to genetic bottleneck effect

Answer:

The two events that might favor heterozygotes among the options are  

  • The Continuous migration of individuals with new alleles into the population
  • Mutations that do not severely affect viability and reproductivity.  These might favor heterozygous frequencies.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf
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