What Is an Ecological Niche

question 39

Multiple Choice

What is an ecological niche?

• A) a species' unique physical traits that suit it for its habitat
• B) the part of the habitat's resources that a species uses
• C) an organism's role in the food chain of an ecosystem
• D) the specific type of shelter an animal finds in its habitat
• E) the degree of relatedness between two species

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Definitions:

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American Needle

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The authority held by the federal government, as outlined in a country's constitution, over national issues.

Wickard V. Filburn

A landmark 1942 Supreme Court case that greatly expanded the power of the federal government to regulate economic activity under the Commerce Clause.