Two Important Differences Between the Processes of Natural Selection and Artificial

question 28

Multiple Choice

Two important differences between the processes of natural selection and artificial selection are

• A)descent and modification.
• B)the selective agent and the traits being selected.
• C)the pace of change and the period of time.
• D)B and C

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Definitions:

Senescence

The process of aging where cells lose the power to divide and grow, affecting the function of organisms over time.

Myelination

The process of forming a myelin sheath around the axons of neurons to insulate them and increase the speed of neural signal transmission.

Neurotransmitter

A brain chemical that carries information from the axon of a sending neuron to the dendrites of a receiving neuron.

Corpus Callosum

A wide band of nerve fibers connecting the left and right hemispheres of the brain, facilitating interhemispheric communication.