The common ancestry revealed by vertebrate skeletons. Introduction: Vertebrate animals have endoskeletons made of cartilage or bone. An endoskeleton (endo-means inner) is an internal support structure that grows with the animal, eliminating the problems associated with molting. An endoskeleton can support animals as large as a whale by consuming less of an organism’s total body mass.

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Chapter 26.1, Problem 3MC

Summary Introduction

To determine:

The common ancestry revealed by vertebrate skeletons.

Introduction:

Vertebrate animals have endoskeletons made of cartilage or bone. An endoskeleton (endo-means inner) is an internal support structure that grows with the animal, eliminating the problems associated with molting. An endoskeleton can support animals as large as a whale by consuming less of an organism’s total body mass.

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