Lesson: Chapter 6 — Human body processes

Putting the chapter together 3 of 3 Reset answers

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Question 3

Which process in the body does not use diffusion?

A Gases passing between capillaries and cells B The heart pumping blood into the aorta C Carbon dioxide leaving the blood in the alveoli D Oxygen entering the blood in the alveoli

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The heart pumping blood into the aorta. Pumping moves blood by muscle contraction, not by differences in concentration.

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