EBK WHAT IS LIFE? A GUIDE TO BIOLOGY WI
EBK WHAT IS LIFE? A GUIDE TO BIOLOGY WI
3rd Edition
ISBN: 8220103648011
Author: PHELAN
Publisher: YUZU
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Chapter 21, Problem 15SA
Summary Introduction

To analyze:

Why birds don't pass out from lack of oxygen, even at high altitudes.

Introduction:

Air flows in one direction in the respiratory system of birds.

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