Which of the Following Statements About Invasive Species Is NOT

question 144

Multiple Choice

Which of the following statements about invasive species is NOT true?

• A)The effect of invasive species on natural communities is always a reduction in diversity.
• B)Humans are responsible for dramatic increases in the number of invasive species.
• C)Invasive species often thrive in new areas because they have few natural predators.
• D)Introduction of invasive species has more devastating effects on islands because of the smaller number of predators and competitors in these systems.
• E)Invasive species reduce community diversity through displacement, competition, and predation.

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Definitions:

Michael Reaction

A conjugate 1,4-addition reaction of a carbon nucleophile to an α,β-unsaturated carbonyl compound.

α,β-unsaturated Carbonyl

An organic compound with a double bond between the alpha and beta carbon atoms adjacent to a carbonyl group, participating in various chemical reactions.

PhCOCH

A general formula shorthand for compounds where a benzene ring (indicated by Ph, standing for phenyl) is attached to a carbonyl group (CO) and an additional unspecified group (CH), leading to a variety of possible chemical structures.

Cyclopentanecarboxylic Acid

A cycloalkane derived carboxylic acid, with the carboxyl group attached to a five-membered ring.