Video Details

Digestion and Excretion: Villi II

Grade Levels: 3 - 12
Core Subject(s): Science
Length: 00:00:13
Website: http://www.uen.org/emedia
Usage rights: Download and retain personal copies in perpetuity.

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Villi are filled with blood vessels, through which food molecules enter the blood stream, where they are converted to energy.

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