Pangaea Formed During the Paleozoic and Broke Up in the Mesozoic.Of

question 149

Multiple Choice

Pangaea formed during the Paleozoic and broke up in the Mesozoic.Of all the former continental unions that existed in Paleozoic time,only that of

• A)Australia and Antarctica has survived to the present time.
• B)Africa and India has survived to the present time.
• C)North and South America has survived to the present time.
• D)Europe and Asia has survived to the present time.

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Definitions:

Resting Potential

The electrical charge of a neuron when it is not active, representing a state of readiness for activation.

Action Potential

A rapid rise and fall in electrical charge across a neuronal membrane, fundamental for nerve impulse transmission.

Millivolts

A unit of electric potential equal to one thousandth of a volt, often used in measurements of neuron activity.

Synaptic Gap

The tiny space between neurons, across which neurotransmitters travel to transmit signals from one neuron to another.