Factors Affecting Genetic Variation Answers

Which environmental factor would likely lead to an increase in genetic variation in a population of squirrels?

Which of the following best defines gene flow?

A population of snakes that eat small rodents enters a new habitat. In the new habitat, there are many species of rodents, and their populations are high because there are few natural predators. What will most likely be the effect on the genetic variation of the snake population?

A group of students is walking in the park, and one of them takes a picture of a pollen grain that is being blown by the wind. What caption can the student use for this picture?

In a population of seals, most of the seals have similar coloring. However, one seal has albinism. This seal is white and is almost completely blind. What is most likely the cause of this difference from the rest of the population?

Environmental factors can influence natural selection because they can increase or decrease

Which environmental factor could lead to a decrease in genetic variation in a population of tuna?

Which term best describes the difference in colors of the birds below?

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?

In a few generations, this population of beetles changed. Which is the most likely explanation for the change?