Stimulation of the Pontomesencephalon ____

question 82

Multiple Choice

 Stimulation of the pontomesencephalon ____.

• A) awakens a sleeping individual
• B) decreases alertness in someone already awake
• C) shifts the EEG from short waves to long, slow waves
• D) delays the onset of the next REM period

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Definitions:

Genetic Drift

Genetic drift is a mechanism of evolution that leads to random changes in the gene pool of a population, often having significant effects in small populations.

New Colony

A newly established population or community, often referring to organisms in a new habitat or to humans in a new settlement.

Genotype Frequency

The proportion of various genetic constitutions within a population, important in the study of population genetics.

Phenotype Frequency

The ratio of individuals possessing a particular phenotype to the total population size, often used in genetic and population studies.