chapter 9 Life Processes in Animals - Part 6

What is diffusion?

Type: MCQ • Marks: 1
What is diffusion?
Options
A. Movement only by pumping
B. Conversion of solids into liquid
C. Movement of particles from region of higher concentration to lower concentration
D. Chemical digestion
Explanation
Oxygen and carbon dioxide cross alveolar and capillary walls by diffusion.
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