On Macquarie Island Invasive Rabbits Were Causing Declines in Palatable

question 21

Multiple Choice

On Macquarie Island invasive rabbits were causing declines in palatable vegetation, and feral cats were preying on native birds. What was the primary result when a flea carrying a virus that killed the rabbits decreased rabbits' numbers on the island?

• A) Feral cats switched from eating rabbits to eating native birds.
• B) Feral cats also died off because of the loss of the rabbit prey.
• C) Native bird populations on the island increased.
• D) Native plant populations on the island declined.

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Definitions:

Concrete Operational

A stage in Piaget’s theory of cognitive development (roughly ages 7 to 11) during which children gain the ability to think logically about concrete events.

Analytic

Pertaining to or resulting from the process of breaking down complex information or problems into simpler parts for better understanding or resolution.

Abstract

Pertaining to ideas, concepts, or qualities not associated with specific objects or events and not having physical existence.

Logical Thinking

The process of reasoning consistently and sensibly, using a structured and methodical approach to analyze and solve problems.