Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 50 - Nutrition, Digestion, and Absorption - 50.2 - Diverse Adaptations Support Ingestion and Digestion of Food - 50.2 Recap - Learning Outcomes - Page 1079: 3

Answer

Tiny projections called villi and microvilli in the intestinal walls drastically increase the surface area to volume ratio, which in turn boosts the efficiency of digestion. In addition, the intestinal lining also demonstrates infolding, which has the same effect.

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