An Example of Keystone Species Are ____.​

question 38

Multiple Choice

An example of keystone species are ____.​

• A) ​beavers that build dams
• B) ​mice that feed on mushrooms and truffles
• C) ​Douglas fir trees
• D) ​kudzu
• E) earthworms that aid decomposition​

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Definitions:

Opportunity Cost

The denial of potential enhancements from other possibilities once one choice is made.

TV Commercials

Short advertisements broadcasted on television, designed to inform or persuade viewers about products, services, or ideas.

Opportunity Costs

The cost of forgoing the next best alternative when making a decision or choosing to do one thing over another.

Tax Rebate

A refund on taxes when the tax liability is less than the taxes paid.