​Many Introduced Species Have Deleterious Effects on Communities and Ecosystems

question 6

Multiple Choice

​Many introduced species have deleterious effects on communities and ecosystems because ____.

• A) ​coevolved parasites and pathogens are absent
• B) ​the introduced species are long-lived
• C) ​predators prefer the introduced species, resulting in proliferation of native prey species
• D) ​the community from which they came lost an important predator, competitor, or parasite
• E) human beings do not know how to appreciate them​

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Definitions:

Loneliness

A complex and usually unpleasant emotional response to isolation or lack of companionship.

Academic Performance

The degree to which a student, teacher, or institution has achieved their short or long-term educational goals.

Drug Abuse

When drug use is harmful, either to the body or to society—as when alcohol makes a person risk their own health or hurt others.

Delinquency

Engaging in behavior that violates legal or social norms, often used in reference to minor criminal activities by young people.