Specialized Exchange Surfaces

Alveoli and Villi (correct)

Lungs and alveoli

Bronchioles and small intestines

Root hair cells and leaves

To absorb carbon dioxide

To absorb nutrients like glucose and amino acids

To absorb water and mineral ions

To exchange oxygen and carbon dioxide (correct)

Blocks the substances from diffusing across

Allows for more molecules to diffuse across at the same time (correct)

Reduces the diffusion distance

Maintains a concentration gradient

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