CAMPBELL BIOLOGY (18W)
CAMPBELL BIOLOGY (18W)
12th Edition
ISBN: 9780136858256
Author: Urry
Publisher: PEARSON
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Chapter 32.3, Problem 2CC
Summary Introduction

To know: The way how animals exchange materials without an internal transport system.

Introduction: In animals, the transportation of gases, nutrients, etc. is done by the circulatory system and excretory system. The circulatory system is used to carry blood through the body. Some animals use diffusion to exchange water and other nutrients in the body.

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