Natural Selection Changes Allele Frequencies Because Some ________ Survive and Reproduce

question 43

Multiple Choice

Natural selection changes allele frequencies because some ________ survive and reproduce more successfully than others.

• A) alleles
• B) loci
• C) gene pools
• D) species
• E) individuals

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Definitions:

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another.

Serotonin

A neurotransmitter that affects mood, appetite, sleep, and other cognitive and physiological processes.

Glutamate

A major neurotransmitter in the brain that plays an important role in learning and memory.

Excitatory Transmitter

A type of neurotransmitter that promotes the firing of neurons, facilitating brain and body activities.