1. Chapter Review Chapter 20 Preview Key Terms Key Ideas Graphics Critical Thinking

2. Chapter Review Chapter 20 Using Key Terms 1.The occurrence of more cases of a disease than expected is called an ____________.

3. Chapter Review Chapter 20 Using Key Terms 1.The occurrence of more cases of a disease than expected is called an epidemic.

4. Chapter Review Chapter 20 Using Key Terms 2.______________ is an STD caused by a bacterium that can cause ulcers or chancres.

5. Chapter Review Chapter 20 Using Key Terms 2.Syphilis is an STD caused by a bacterium that can cause ulcers or chancres.

6. Chapter Review Chapter 20 Using Key Terms 3._________________ are infectious diseases spread by sexual contact.

7. Chapter Review Chapter 20 Using Key Terms 3.Sexually transmitted diseases (STDs) are infectious diseases spread by sexual contact.

8. Chapter Review Chapter 20 Understanding Key Ideas 4.One in ______ female teenagers get pregnant each year. A. 5 B. 10 C. 20 D. 100

9. Chapter Review Chapter 20 Understanding Key Ideas 4.One in ______ female teenagers get pregnant each year. A. 5 B. 10 C. 20 D. 100

10. Chapter Review Chapter 20 Understanding Key Ideas 5.What percentage of all new SDTD cases occur in people between the ages of 15 and 19? A. 1 percent B. 10 percent C. 25 percent D. 50 percent

11. Chapter Review Chapter 20 Understanding Key Ideas 5.What percentage of all new SDTD cases occur in people between the ages of 15 and 19? A. 1 percent B. 10 percent C. 25 percent D. 50 percent

12. Chapter Review Chapter 20 Understanding Key Ideas 6.What symptom may occur in both males and females who have gonorrhea? A. fever B. painful urination C. bleeding D. blisters

13. Chapter Review Chapter 20 Understanding Key Ideas 6.What symptom may occur in both males and females who have gonorrhea? A. fever B. painful urination C. bleeding D. blisters

14. Chapter Review Chapter 20 Understanding Key Ideas 7.Which viral STD increases a woman’s risk of developing cervical cancer? A. HPV B. HIV C. gonorrhea D. genital herpes

15. Chapter Review Chapter 20 Understanding Key Ideas 7.Which viral STD increases a woman’s risk of developing cervical cancer? A. HPV B. HIV C. gonorrhea D. genital herpes

16. Chapter Review Chapter 20 Understanding Graphics 8.What was the rate of chlamydia infections in 1999?

17. Chapter Review Chapter 20 Understanding Graphics 8.What was the rate of chlamydial infections in 1999? Between 375 and 400 cases per 100,000 people

18. Chapter Review Chapter 20 Understanding Graphics 9.How has the number of cases of chlamydia changed over time?

19. Chapter Review Chapter 20 Understanding Graphics 9.How has the number of cases of chlamydia changed over time? It has increased.

20. Chapter Review Chapter 20 Critical Thinking 10. Describe how the life of a teen parent differs from the life of a teen without a child.

21. Chapter Review Chapter 20 Critical Thinking 10. Describe how the life of a teen parent differs from the life of a teen without a child. Teen parents may have to interrupt their education, job options are limited, parents are legally responsible for the care and well-being of their children, and teen parents are not ready for this type of responsibility.