Answers24 - 25 CR - Biology B 0411KBFactors Affecting Biological Diversity-Standard Bio 4.4

Factors Affecting Biological Diversity-Standard Bio 4.4 Answers

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Explain why scientists believe the Abert’s and Kaibab squirrels are examples of speciation.

Answer:

Scientists believe the Abert’s and Kaibab squirrels are examples of speciation because they were geographically isolated by the formation of the Grand Canyon. The Abert’s squirrel lives on the South Rim, while the Kaibab squirrel is isolated on the North Rim. Erosion separated the forests, preventing the two populations from interbreeding, which allowed them to develop distinct physical characteristics over time.

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What did you include in your response? Check all of the boxes that apply.

A
The Abert’s squirrel is found on the south rim of the grand canyon and surrounding states.
B
The Kaibab squirrel can only be found at the north rim of the canyon.
C
Scientists believe they were separated by plateau erosion that separated the forests of the Grand Canyon, isolating the Kaibab population of squirrels.
3

What did you include in your response? Check all of the boxes that apply.

A
New species of plants can possibly be used as medicine.
B
New species of plants can be discovered.

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