Which of the Following Is Not One of the Underlying

question 10

Multiple Choice

Which of the following is not one of the underlying premises of Darwin's theory of natural selection?

• A)all natural populations tend to overproduce
• B)there is competition for scarce resources in nature
• C)members in a species exhibit heritable differences
• D)those individuals better adapted to their environment will survive and reproduce at a higher rate
• E)the best adapted organisms are always those that are stronger or faster

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Definitions:

Acetylcholinesterase

Enzyme found in the synaptic cleft that causes the breakdown of acetylcholine to acetic acid and choline, thus limiting the stimulatory effect of acetylcholine.

Acetylcholine

A neurotransmitter involved in many functions including muscle contraction and the transmission of nerve impulses in the central and peripheral nervous system.

Synapse

The junction between two neurons, where electrical or chemical signals are transmitted from one neuron to another.

Postsynaptic Membrane

The part of the nerve cell that receives signals from another neuron at a synapse, responding to the neurotransmitters released.