BIOLOGY
BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 50, Problem 4S

Toll-like receptors have been found in a wide variety of organisms, including both protostomes and deuterostomes, and now in cnidarians. In addition, parts of the signaling system have been found in a wide variety of organisms as have parts of the complement system. What does this say about the evolution of innate immunity?

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