The Unusual Shape of the Erythrocyte Can Be Explained by Which

question 49

Multiple Choice

The unusual shape of the erythrocyte can be explained by which of the following?

• A) It increases surface area for respiratory exchange across the plasma membrane.
• B) It reflects the fact that erythrocytes are degenerating.
• C) It is the best shape for a cell that must pass through narrow capillaries.
• D) It allows each cell to hold a maximum amount of hemoglobin.

---

Definitions:

Spontaneous Recovery

The reappearance of a previously extinguished response after a period without exposure to the conditioned stimulus.

Extinguished Conditioned Response

The gradual weakening and disappearance of a conditioned response after the conditioned stimulus is presented repeatedly without the unconditioned stimulus.

Pause

A temporary stop or break in action or speech, used for effect, hesitation, or to separate ideas.

Adaptive Value

The extent to which a trait or behavior positively affects an organism's survival and reproductive success.