After the Number of Wolves Declined in Yellowstone National Park

question 54

Multiple Choice

After the number of wolves declined in Yellowstone National Park, ____.

• A) the ecosystem recovered and became more stable
• B) herds of elk, moose, and mule deer devastated willow and aspen trees near streams and rivers
• C) the elk population crashed
• D) forest fires decreased in frequency because the larger mule deer population controlled undergrowth
• E) coyotes took over their role in the ecosystem, leading to few changes

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Definitions:

Limbic Lobe

The limbic lobe is a set of brain structures located on both sides of the thalamus, immediately beneath the cerebrum, involved in emotion, behavior, and long-term memory.

Autonomous Morality

The second stage in Piaget’s cognitive-developmental theory of moral development, in which children base moral judgments on the intentions of the wrongdoer and on the amount of damage done.

Objective Morality

The perception of morality as objective, that is, as existing outside the cognitive functioning of people.

Piaget's Theory

A theory of cognitive development that describes how children construct a mental model of the world through stages of learning.