Which of these conditions should completely prevent the occurrence of natural selection in a population over time?Group of answer choicesThe environment is changing at a relatively slow rate.All variation between individuals is due only to environmental factors.The population lives in a habitat where there are no competing species present.The population size is large.
Question
Which of these conditions should completely prevent the occurrence of natural selection in a population over time?Group of answer choicesThe environment is changing at a relatively slow rate.All variation between individuals is due only to environmental factors.The population lives in a habitat where there are no competing species present.The population size is large.
Solution
The condition that should completely prevent the occurrence of natural selection in a population over time is: "All variation between individuals is due only to environmental factors."
Here's why:
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"The environment is changing at a relatively slow rate." - This would not prevent natural selection. In fact, natural selection can occur at any rate of environmental change. It's the survival and reproduction of the fittest that matters, not the speed of environmental change.
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"All variation between individuals is due only to environmental factors." - This would prevent natural selection. Natural selection relies on genetic variation in a population. If all variation is due to environmental factors and not genetic factors, then there would be no traits for natural selection to "select."
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"The population lives in a habitat where there are no competing species present." - This would not prevent natural selection. Competition between species (interspecific competition) is just one of many factors that can drive natural selection. Even without competing species, there can still be competition within the species (intraspecific competition) and other factors like predation and disease that can drive natural selection.
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"The population size is large." - This would not prevent natural selection. In fact, larger population sizes can lead to more genetic variation, which
Similar Questions
Which of the following is least likely to cause a species to become extinct due to changes in the environment?Group of answer choicesless genetic variation within the speciesspecific food preferencesmore competition for foodmore genetic variation within the species
Natural selection occurs whenMultiple Choicewhen a small number of individuals of a population break away and form a new population.a factor in the environment alters the genetic information in DNA of all members of a species.only when nonrandom mating occurs.a new genetic variation occurs that allows individuals to have a reproductive and survival advantage.
Select all of the following that are true about natural selection.Multiple select question.individuals that are not adapted to local conditions become more common in the populationoccurs due to variation in environmental factorsreproductive success of individuals differsoccurs by random chance
In which of the following situations is biodiversity in a population likely to decrease over time causing a genetic bottleneck?A.Two new individuals of deer join an existing deer population.B.A storm kills 75 percent of a population of a species of a bird population in an area.C.A neutral mutation occurs in an individual of a population.D.A tree falls in a forest disrupting the habitat of several squirrels.
Small populations of organisms are less likely to survive changes in the environment becauseA.individuals cannot find mates in such small populations.B.mutations do not occur in small populations.C.there is not sufficient variation in the gene pool of the population to ensure that some members are better adapted in the new environment.D.natural selection only applies to very large populations.
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