DB 4 Environmental Biology

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School

College of DuPage *

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Course

1110

Subject

Anthropology

Date

Dec 6, 2023

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docx

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Uploaded by CommodoreGorilla3551

 Why is it more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain? A: The reason it becomes more and more difficult to obtain sufficient energy resources for top carnivores rather than animals lower on the food chain is because the higher trophic levels have less energy than the lower ones on the energy pyramid.  What sorts of genetic changes are more common in smaller populations than large ones? Are these problematic and, if so, how? A: One example of a genetic change that are more common in smaller populations rather than large ones is inbreeding depression. This can be problematic due to the elevation in mutations that reduce overall fitness.  What does island biogeography theory suggest about the ideal design of a nature preserve? (Tink of a preserve as a habitat island.) A: This theory suggests that nature preserves may increase survival rate of organism by increasing the availability of habitat.  What are some reasons why the number and size of nature preserves are limited? In your answer, consider what you know about both local and international pressures (social, economic, and political). A: Some reasons why the number and size of nature preserves are limited would include funding, legality, roads, and the amount of buildings that exist covering the majority of land in our environment.

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