Which of the following is not necessary to cause evolution by natural selection? Phenotypic variation among individuals Heritability of variable traits Adaptations Differences in survival and reproduction among individuals All are necessary

Which of the following is not necessary to cause evolution by natural selection? Phenotypic variation among individuals Heritability of variable traits Adaptations Differences in survival and reproduction among individuals All are necessary

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 19QP: Measuring Genetic Diversity in Human Populations The theory of natural selection has been summarized...

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Concept explainers

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.

Question

Urgent please

Which of the following is not necessary to cause evolution by natural selection?

Phenotypic variation among individuals

Heritability of variable traits

Adaptations

Differences in survival and reproduction among individuals

All are necessary

Definition Definition Observable physical traits or characteristics of an organism, which are determined by its genetic makeup (genotype) as well as environmental factors. These traits can include anything from eye color or height to behavior or disease susceptibility. Understanding an organism's phenotype is important in fields such as genetics, medicine, and ecology.

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