Campbell Biology (10th Edition)
Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 33.1, Problem 2CC
Summary Introduction

To determine: Whether the hypothesis that Mesomycetozoa is the sister group of animals is correct or not.

Concept introduction: The sponges possess flagellated cells called choanocytes. These choanocytes show similarity with the cells of choanoflagellates suggesting that the animals evolved from a choanoflagellate as their ancestor.

Choanoflagellates are a group of single celled protists. They are found in both marine and freshwater. They have flagella that help them in locomotion and feeding as in sponges. They are filter feeders. They filter out bacteria and food particle from surrounding water.

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