the BIG idea CHAPTER OUTLINE The body develops and maintains itself over time. The human body changes over time. 5.1 Systems in the body function to maintain health. 5.2 CHAPTER Science helps people prevent and treat disease. 5.3 Growth, Development, and Health NEW CHAPTER

VOCABULARY KEY CONCEPT CHAPTER HOME The stages of life are infancy, childhood, adolescence, adulthood, and later adulthood. 5.1 SECTION OUTLINE SECTION OUTLINE The human body changes over time. childhood infancy Your body develops and grows throughout your entire life. Some changes are physical All the different systems in the body interact to maintain your health. Average Weight for Females SOURCE: U.S. Center for Disease Control and Prevention Age (years) 15birth Weight (kilograms) adulthood adolescence and some are emotional.

VOCABULARY KEY CONCEPT CHAPTER HOME The stage of life that begins at birth and ends when a baby begins to walk. infancy 5.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The human body changes over time. childhood infancy adulthood adolescence

VOCABULARY KEY CONCEPT CHAPTER HOME The stage of life after infancy and before the beginning of sexual maturity. childhood 5.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The human body changes over time. childhood infancy adulthood adolescence

VOCABULARY KEY CONCEPT CHAPTER HOME The stage of life from the time a human body begins to mature sexually to adulthood. adolescence 5.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The human body changes over time. childhood infancy adulthood adolescence

VOCABULARY KEY CONCEPT CHAPTER HOME The stage of life that begins once a human body completes its growth and reaches sexual maturity. adulthood 5.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The human body changes over time. childhood infancy adulthood adolescence

VOCABULARY KEY CONCEPT CHAPTER HOME Systems in the body function to maintain health. 5.2 SECTION OUTLINE SECTION OUTLINE addiction nutrition Your diet affects your health. Source: National Institutes of Health Vitamins and Minerals Vitamin or Mineral Recommended Daily Allowance Vitamin A Niacin Vitamin B 2 Vitamin B 6 Vitamin C Vitamin E Calcium Phosphorus 0.3 to 1.3 mg 6–18 mg 0.5–1.6 mg 0.5–2.0 mg 15–120 mg 6–19 mg 500–1300 mg 460–1250 mg Potassium Zinc Magnesium Iron 1600–2000 mg 3–13 mg 80–420 mg 7–27 mg Important nutrients include proteins, carbohydrates, fats, vitamins, minerals, and water. Water is also essential to healthy living. Exercise is the final ingredient to a healthy life. Problems that can interfere with a healthy life are drug abuse, addiction, and eating disorders.

VOCABULARY KEY CONCEPT CHAPTER HOME The study of the materials that nourish the body. nutrition 5.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Systems in the body function to maintain health. addiction nutrition

VOCABULARY KEY CONCEPT CHAPTER HOME A physical or psychological need for a habit- forming substance, such as alcohol or drugs. addiction 5.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Systems in the body function to maintain health. addiction nutrition

VOCABULARY KEY CONCEPT CHAPTER HOME 5.3 SECTION OUTLINE SECTION OUTLINE Science helps people prevent and treat disease. bacteria microorganism virus resistance Science helps people fight disease. Noninfectious diseases are not contagious. Some of these noninfectious diseases are present at birth and others occur in later life. Antibiotics are used to fight diseases caused by bacteria. Infectious disease can spread in many ways including food, air, water, insects, animals, and person-to-person contact. Mold Area kept clear of bacteria by the mold. Bacteria

VOCABULARY KEY CONCEPT CHAPTER HOME A very small organism that can be seen only with a microscope. Bacteria are examples of microorganisms. microorganism 5.3 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Science helps people prevent and treat disease. bacteria microorganism virus resistance

VOCABULARY KEY CONCEPT CHAPTER HOME A large group of one-celled organisms that sometimes cause disease. Bacteria is a plural word; the singular is bacterium. bacteria 5.3 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Science helps people prevent and treat disease. bacteria microorganism virus resistance

VOCABULARY KEY CONCEPT CHAPTER HOME A nonliving disease-causing particle that uses the materials inside cells to make copies of itself. A virus consists of genetic material enclosed in a protein coat. virus 5.3 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Science helps people prevent and treat disease. bacteria microorganism virus resistance

VOCABULARY KEY CONCEPT CHAPTER HOME 1. The ability of an organism to protect itself from a disease or the effects of a substance. resistance 5.3 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Science helps people prevent and treat disease. bacteria microorganism virus resistance 2. The property of a material that determines how easily a charge can move through it. Resistance is measured in ohms.

VOCABULARY KEY CONCEPT CHAPTER HOME I. The human body changes over time. A. The human body develops and grows. B. Systems interact to maintain the human body. 5.1 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY The human body changes over time. 4. Adulthood 5. Later Adulthood 1. Infancy 2. Childhood 3. Adolescence childhood infancy adulthood adolescence

VOCABULARY KEY CONCEPT CHAPTER HOME II. Systems in the body function to maintain health. B. Exercise is part of a healthy lifestyle. 5.2 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY A. Diet affects the body’s health. Systems in the body function to maintain health. C. Drug abuse, addiction, and eating disorders cause serious health problems. addiction nutrition 1. Getting Nutrients 2. Understanding Nutrition 1. Exercise 2. Lifestyle 1. Drug Abuse 2. Addiction 3. Eating Disorders

VOCABULARY KEY CONCEPT CHAPTER HOME III. Science helps people prevent and treat disease. 5.3 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Science helps people prevent and treat disease. bacteria microorganism virus resistance B. The germ theory describes some causes of disease. A. Scientific understanding helps people fight disease. C. Infectious diseases spread in many ways. 1. Bacteria and Viruses 2. Treating Infectious Diseases 1. Food, Air, Water 2. Contact with Insects and Other Animals 3. Person-to-Person Contact

VOCABULARY KEY CONCEPT CHAPTER HOME III. Science helps people prevent and treat disease. 5.3 KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Science helps people prevent and treat disease. bacteria microorganism virus resistance E. Scientists continue efforts to prevent and treat illness. D. Noninfectious diseases are not contagious. 1. Diseases Present at Birth 2. Diseases Later in Life