Which of the following is not an adaptation capillaries have evolved that makes them more efficient at exchanging materials between blood and the adjacent tissues?

Question

Quizplus · Accepted Answer

A small surface area-to-volume ratio would actually make capillaries less efficient, as they need a large surface area for exchange to occur. The other three adaptations listed (very thin walls, small diameter, and porous walls) all contribute to capillaries' efficiency at exchanging materials between blood and adjacent tissues.

Which of the Following Is Not an Adaptation Capillaries Have