Environmental factors can influence natural selection because they can increase or decreasethe number of chromosomes in an individual.the number of chromosomes in a population.the amount of genetic variation in an individual.the amount of genetic variation in a population. A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the populationevery six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one sixmonth period, an event occurred that affected the population, and when the scientist returned, the amount of geneticvariation had decreased significantly. Which of the following is most likely the event that occurred to change thepopulation?Yellowstone National Park expanded its borders.A population of wolves was introduced into Yellowstone National Park.The amount of disease in the deer population decreased.More grass and shrubs were planted in Yellowstone National Park.

Genetic variation is the difference in DNA among individuals or the differences between populations.…

Answered: ellowstone National Park.

Science

Biology

ellowstone National Park.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 10TYU: Which of the following is not true of natural selection? (a) natural selection acts to preserve...

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Question

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Environmental factors can influence natural selection because they can increase or decrease
the number of chromosomes in an individual.
the number of chromosomes in a population.
the amount of genetic variation in an individual.
the amount of genetic variation in a population.

A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population
every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one six
month period, an event occurred that affected the population, and when the scientist returned, the amount of genetic
variation had decreased significantly. Which of the following is most likely the event that occurred to change the
population?
Yellowstone National Park expanded its borders.
A population of wolves was introduced into Yellowstone National Park.
The amount of disease in the deer population decreased.
More grass and shrubs were planted in Yellowstone National Park.

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