CAMPBELL BIOLOGY,VOL.II >CUSTOM<
CAMPBELL BIOLOGY,VOL.II >CUSTOM<
17th Edition
ISBN: 9781323803677
Author: Urry
Publisher: PEARSON
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Chapter 33, Problem 4TYU
Summary Introduction

Introduction: Sponges are multicellular organisms that belong to the phylum Porifera.

Their body lack true tissue and organs. The complete digestive, nervous and the circulatory system is absent in them. Organisms belonging to the phylum Porifera are generally acoelomates.

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