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Multiple Choice
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1

According to Darwin's theory of evolution, a trait persists in a species when individuals possessing that trait kill off individuals who lack it, thereby dominating the gene pool.
A)T
B)F
2

Evolution can be defined as a change over time in the frequency with which particular genes occur within an interbreeding population.
A)T
B)F
3

Hormones are secreted by glands in the endocrine system.
A)T
B)F
4

When a number of gene pairs combine their influences to create a single phenotypic trait, that process is known as a recombinant DNA procedure.
A)T
B)F
5

The basic building blocks of the nervous system are dendrites.
A)T
B)F
6

Positively charged sodium ions flow into the interior of the neuron, creating a state of partial depolarization, when the ion channels are activated.
A)T
B)F
7

The two divisions of the central nervous system are the parasympathetic and sympathetic.
A)T
B)F
8

PET scans measure brain structure.
A)T
B)F
9

The cerebellum is concerned primarily with muscular movement coordination, but it also plays a role in learning and memory.
A)T
B)F
10

The association cortex is involved in the highest levels of mental functions, including perception, language, and thought.
A)T
B)F





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