Biology
Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 45, Problem 10TY
Summary Introduction

Introduction: All animals overcome frictional forces generated by air, water or surface of the land for locomotion. Therefore, all forms of locomotion require energy to provide thrust and lift. Thrust is defined as the forward motion of an animal in any environment. Lift is defined as the movement against gravity.

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