Zoology Exam Study

only about 80 spicies of echinoderms are

echinderms have a ____ composed of _____ ____ plates called _____

Echino's contain a _____ _____ _____ , network or hydraulic canals which branch into extensions called _______ _____

tube feet function in _____, _____, _____, and _____

echino;s are true

they have a ___ ___ that circles the mouth and a ___ ____ that runs the length of each arm(in starfish)

animals where the mouth develops first

echinos are______

echinos carry out ____ fertilization

there are about ____ species of echindoerms

class Asteroidea contains the ____ ____

class Ophiuroidea contains ____ ____

brittle stars don,'t have an ____

class Echinoidea contains ____ ____

echinoidea lack ____

class holothuroidea contains __ ______

class crinoidea contains _____ ____and ____ ______