Several Areas of the Limbic System Act as Reward,or "Pleasure

question 320

Multiple Choice

Several areas of the limbic system act as reward,or "pleasure," pathways with many overlaping with the areas that control thirst,sex,and hunger in the

• A) cerebellum.
• B) reticular formation.
• C) hippocampus.
• D) hypothalamus.

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Definitions:

Macroevolution

Large-scale evolutionary changes that occur over geologic time, leading to the emergence of new species and broader taxonomic groups.

Microevolution

Change in the genetic makeup of a species or a small group of organisms over a brief time period, regarded as evolutionary.

Speciation

Evolution of a new species.

Mass Extinctions

Events in Earth's history where large numbers of species become extinct worldwide in a relatively short geological timeframe, drastically reducing biodiversity.