Chapter 43.2, Problem 2SB

Summary Introduction

To review:

The functions of bones of the vertebrate endoskeleton.

Introduction:

There are three types of skeletal system: exoskeleton, which forms the outer shell in tortoise, Endoskeleton, which lies beneath the exoskeleton in echinoderms, and the hydrostatic skeleton, which is found in the coelom of echinoderms.