EBK INTEG.PRIN.OF ZOOLOGY
18th Edition
ISBN: 9781260411201
Author: HICKMAN
Publisher: MCG COURSE
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Chapter 23, Problem 13RQ
Summary Introduction
To determine: The currently favored explanation for the evolution of vertebrate jaws.
Introduction: The vertebrate jaws are found in bony fishes. They are of two types: oral jaws and pharyngeal jaws. The jaws are present at the back of the throat of a bony fish. Jaws help in biting, crushing, and moving of food from the mouth to stomach.
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