Some features of a respiratory surface in animals are mentioned below. Select the INCORRECT option.

Question

Some features of a respiratory surface in animals are mentioned below. Select the INCORRECT option. — Exam MCQ

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B. Is very thick — An efficient respiratory surface is thin, allowing rapid diffusion of gases, and has a large surface area.

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A. Presence of a mechanism for moving air in and out of this area

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C. Has a large surface area

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D. Usually placed inside the body