Fick's Law of Diffusion Describes the Factors That Influence the Diffusion

question 25

Multiple Choice

Fick's law of diffusion describes the factors that influence the diffusion of respiratory gases across biological membranes like gills and lungs. Diffusion rate = k × A × (P2 − P1) /D. Natural selection is LEAST likely to act upon which variable in Fick's law?

• A) A
• B) k
• C) P2 − P1
• D) D

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