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21.1 Sexuality from Different Points of View

  1. Define sexuality.

Answer

  1. Name one advantage of a sexually reproducing species.

Answer

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Case Study

21.2 Chromosomal Determination of Sex

  1. Describe the processes that cause about 50% of the babies to be born male and 50% to be born female.

Answer

  1. Name two genetic abnormalities associated with nondisjunction of chromosomes.

Answer

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21.3 Male and Female Fetal Development

  1. List the events that occur as an embryo matures.

Answer

  1. What is cryptochidism?
Answer

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Case Study

Food for Thought

21.4 Sexual Maturation of Young Adults

  1. What are the effects of secretions of the pituitary, the gonads, and adrenal glands at puberty in females?

Answer

  1. What role does testosterone play in male sexual maturation?

Answer

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21.5 Spermatogenesis

  1. What structures are associated with the human male reproductive system? What are their functions?

Answer

  1. List the path taken by sperm from their source until they are eliminated from the body.

Answer

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21.6 Oogenesis

  1. What structures are associated with the human female reproductive system? What are their functions?

Answer

  1. What are the differences between oogenesis and spermatogenesis in humans?

Answer

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Animations and Review

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21.7 Hormonal Control of Fertility

  1. What changes occur in ovulation and menstruation during pregnancy?

Answer

  1. How are ovulation and menses related to each other?

Answer

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21.8 Fertilization and Pregnancy

  1. What are the functions of the placenta?

Answer

  1. What causes the difference between identical and fraternal twins?

Answer

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Case Study

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21.9 Contraception

  1. Describe hormonal methods of conception control.

Answer

  1. Describe barrier methods of conception control.

Answer

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21.10 Abortion

  1. What is a D & C?

Answer

  1. How does RU-486 work?

Answer

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21.11 Sexual Function in the Elderly

  1. What is menopause?

Answer

  1. How does sexual function change with age?

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