Australia Has Distinctive Organisms, Such as Egg-Laying Mammals and Pouched

question 30

Multiple Choice

Australia has distinctive organisms, such as egg-laying mammals and pouched mammals (marsupials) , because they have:

• A) an unusual climate that has triggered natural selection.
• B) selective conditions that have been relaxed.
• C) been separated and isolated from other land masses for a long period of time.
• D) experienced a significantly slower rate of evolutionary change.
• E) fewer species of organisms than most continents.

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Definitions:

Hunger

The physical sensation or condition caused by the need or desire to eat food.

Satiety

A feeling of fullness and satisfaction that signals the body to stop eating, often regulated by hormonal signals responding to food intake.

Disease-avoidance Mechanism

Psychological and physiological responses aimed at preventing infection or illness by avoiding pathogens or unhealthy environments.

Evolutionary Theorists

Researchers or intellectuals who study and explain how evolutionary processes, such as natural selection, affect the development of species, behaviors, and social structures.