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Terms in this set (15) ; what is homeostasis. maintenance of a stable internal environment ; how do communication systems allow the body to maintain homeostasis. b. nervous c. homeostasis d. endocrine. Holt McDougal Biology. 1. Nervous and Endocrine Systems. Study Guide A. Section 1: How Organ Systems Communicate Page 1. 29.1 How Organ Systems Communicate. KEY CONCEPT. The nervous system and the endocrine system provide the means by which organ systems communicate. Contrast the nervous and endocrine systems' methods of communication. Section Resources. Unit Resource Book. Study Guide pp. 23–24. Power Notes p. Students' answers will vary. Section 1: How Organ Systems Communicate. Study Guide. Key Concept. The nervous system and the endocrine system provide the means Section 1: How Organ Systems Communicate. Study Guide 29-1. Key Concept MAIN IDEA: The body's communication systems help maintain homeostasis. Communication among organ systems is vital if they are to work together as a team. They must be able to respond to each other and change their responses asUnit 11 Study Guide. Answer Key. Human Systems. SECTION 28.1. LEVELS OF ORGANIZATION. 1. Stem cells go through two processes to become specialized cells. SECTION. 29.1. HOW ORGAN SYSTEMS COMMUNICATE. Study Guide. KEY CONCEPT 1. What is homeostasis? 2. How do communication systems allow the body to