One Way to Understand How Early Environment Influences Differing Behaviours

question 4

Multiple Choice

One way to understand how early environment influences differing behaviours in similar species is through the "cross-fostering" experimental technique. Suppose that the curly-whiskered mud rat differs from the bald mud rat in several ways, including being much more aggressive. How would you set up a cross-fostering experiment to determine if environment plays a role in the curly-whiskered mud rats' aggression?

• A)You would cross curly-whiskered mud rats and bald mud rats and hand-rear the offspring to see if any grew up to be aggressive.
• B)You would place newborn curly-whiskered mud rats with bald mud rat parents, place newborn bald mud rats with curly-whiskered mud rat parents, and let some mud rats of both species be raised by their own species. Then you would compare the outcomes.
• C)You would remove the offspring of curly-whiskered mud rats and bald mud rats from their parents, raise them in the same environment, and then compare the outcomes.
• D)You would see if curly-whiskered mud rats bred true for aggression.
• E)You would replace normal newborn mud rats with deformed newborn mud rats to see if it triggered an altruistic response.

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Definitions:

Ku Klux Klan

A white supremacist terrorist organization that formed during the Reconstruction era in the United States, aimed at reinstating white supremacy by means of violence and intimidation.

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Pertains to the period from the year 1901 to 1940, characterized by significant technological, economic, and social changes globally.

1924 Immigration Act

A United States federal law that limited the number of immigrants allowed entry into the United States through a national origins quota.

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People from the continent of Europe, which comprises a significant portion of the westernmost part of Eurasia.