Biology 12

167

Chapter

Contents

6.1 The Endocrine System

and Homeostasis 168

6.2 The Adrenal Glands

and Stress 184

Thinking Lab: Symptoms of

Cushing’s Syndrome and

Addison’s Disease 186

Design Your Own Investigation

6-A: Crowding Stress on a

Guppy Population 188

6.3 Reproductive Hormones 192

Thinking Lab: Testosterone

and Baboon Behaviour 195

Thinking Lab:

The Menstrual Cycle 200

MiniLab: Sex Hormones

in Your Salad 201

Thinking Lab: Hormone

Replacement Therapy 202