Which of the Following Descriptions Best Represents the Gradual Model

question 13

Multiple Choice

Which of the following descriptions best represents the gradual model of speciation?

• A)Species undergo little change over long periods interrupted only by short periods of rapid change.
• B)An isolated population differentiates quickly from its parent stock as it adapts to its local environment.
• C)Speciation occurs regularly as a result of the accumulation of many small changes.
• D)Speciation occurs under unusual circumstances and therefore transitional fossils are hard to find.

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Definitions:

Afferent

Describes nerves or pathways that carry sensory signals from the peripheral organs toward the central nervous system.

Impulses

Electrical or chemical signals transmitted through nerves in the body.

Center

The point that is equally distant from every point on the circumference of a circle or sphere, or the middle point of a given entity or space.

Arteritis

Inflammation of the arteries that can cause them to thicken, weaken, narrow, and scar, affecting blood flow.