Figure 18-11 Based on the Accompanying Figure, Which Two Present Day Continents

question 32

Multiple Choice

Figure 18-11

Based on the accompanying figure, which two present day continents should have the most closely related plant and animal species?

• A) Eurasia and India
• B) Australia and India
• C) Africa and Australia
• D) North and South America
• E) Africa and South America

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Definitions:

Neuromuscular Junction

A specialized synapse between a motor neuron and a muscle fiber, through which signals are transmitted to initiate muscle contraction.

Neurotransmitter

Chemical stored at the ends of axons that is responsible for transmission across a synapse.

Muscle Contraction

The process where muscle fibers shorten or generate tension in response to nervous system signals, allowing movement of the body.

Action Potential

Electrochemical changes that take place across the axon membrane; the nerve impulse.