Which Phrase Does NOT Describe a Keystone Species

question 30

Multiple Choice

Which phrase does NOT describe a keystone species?

• A) a species on which many other species depend
• B) a species whose removal would have a dramatic effect on the community
• C) a species that plays a central role in holding the community together
• D) a species that always occupies the highest trophic level in a community
• E) All of these describe a keystone species.

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Definitions:

Constrained Resources

Resources in limited supply that restrict the ability of an organization to produce goods or services or achieve desired outcomes.

Linear Programming

A mathematical modeling technique used for optimization of a linear objective function, subject to linear equality and inequality constraints.

Sensitivity Analysis

A technique used to determine how different values of an independent variable will impact a particular dependent variable under a given set of assumptions.

Linear Programming

A mathematical method used for achieving the best outcome (such as maximum profit or lowest cost) in a mathematical model whose requirements are represented by linear relationships.