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krek1111 [17]
3 years ago
13

Capillary walls serve as effective permeability barriers for

Biology
2 answers:
lakkis [162]3 years ago
4 0
That would be D. Proteins

Capillary walls serve as barriers for movement of proteins in and out of the capillary but let small molecules pass through.
HACTEHA [7]3 years ago
3 0

I think the answer is D. Proteins.

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