Direct diffusion through the body surface works only for organisms sma…

Question

Direct diffusion through the body surface works only for organisms smaller than about:

Accepted Answer

A. 1 mm

1. Diffusion is slow over distance.
2. Only very tiny bodies can rely on it.
3. The limit is about 1 mm.
_Source: OpenStax Biology 2e, Chapter 39, The Respiratory System._

Answer

1 m

Answer

1 km

Answer

1 dm

Direct diffusion through the body surface works only for organisms smaller than about:

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