Bio 121 Campbell Biology Truman College
Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Chapter 39, Problem 3TYU
Summary Introduction

Introduction: Charles and Francis Darwin conducted experiments on coleoptiles. Their experiment involved four groups of coleoptiles. In the first group of coleoptiles, the tips were removed. In the second group, tips were covered by opaque material. In the third group, the tips were covered by transparent material. In the fourth group, the site of curvature was covered by opaque material.

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Bio 121 Campbell Biology Truman College

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