The Polarization of a Neuron Results in a Resting Potential

question 137

Multiple Choice

The polarization of a neuron results in a resting potential of about -70 millivolts. This is followed by depolarization, resulting in an action potential of +110 millivolts. This brings the membrane voltage to

• A)+ 40 millivolts.
• B)-40 millivolts.
• C)+180 millivolts.
• D)-180 millivolts.

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Definitions:

Comparative Method

A research approach in evolutionary biology that compares different species or populations to understand adaptation, phylogeny, and function.

Shared Ancestry

The common evolutionary origin of two or more species, which is reflected in their genetic material.

Ideal Free Distribution

A theory in ecology that predicts how animals distribute themselves among habitats to maximize their fitness, assuming individuals are free to choose and are perfectly informed.

Habitats

The natural environments or places where a particular species lives and grows; it is crucial for the survival of species.