Campbell Essential Biology with Physiology (6th Edition)
Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 25, Problem 10SQ
Summary Introduction

Concept introduction: The male and the female gonads secrete the sex hormones. Testosterone is a male sex hormone that is secreted by the cells of the testis, which induces the development of secondary sexual characteristics like beard, moustache, and increase in girth of muscle mass, acts in the vocal cords, and deepens the voice and changes the shape of face and skeleton.

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Types of Hormones
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