Which of the following statements is compatible with Darwin\'s theory of evoluti

Question

Which of the following statements is compatible with Darwin's theory of evolution? much of the variation in individuals of a population is heritable survival depends mostly on luck members of a population are usually very much alike in their characteristics resources are unlimited Anatomical similarities that represent variations on a structural theme present in a common ancestor are said to be analogous. True False Genetic drift caused by a sudden change in the environment that drastically reduces the size of a population is called the founder effect gene flow the bottleneck effect natural selection Which mode of selection favors individuals at one end of the phenotypic range? disruptive directional stabilizing natural

Explanation / Answer

18.)

Answer - A, C, and D.

Most compatible answer is C

B is out because the theory says the individual that is most suitable to environmental conditions has the highest survival chance. It's not a luck. Survival depends on environmental factors and conditions

19.)

Answer - False

Homologous structures represetn variations on a structural theme that waspresent in their common ancestor.

20.)

Answer - C - The bottle Neck Effect

Bottleneck Effect : A sudden change in environment that may drastically reduce the size of a population (floods, fire) . Severe drop in population size. Alleles may be: Overrepresented, Underrepresented, Absent.

21.)

Answer - B ) - Directional

Directional selection favors individuals that are at one end of the phenotypic range, usually during periods of environmental change. This type of selection favors the variants of one extreme by selecting against the other extreme; thus, resulting in a shift of the phenotype frequency curve. Open this animation Animation 1, click on directional, then the play button to see how directional selection favors variants at one extreme of the phenotypic range.

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