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1. The fallopian tube is an organ that ends in the
A. uterus.
B. vagina.
C. ovaries.
D. cervix.

2. Which of the following events takes place in the ovaries?
A. Absorption of estrogen
B. Storage of sperm
C. Production of ova
D. Fertilization of eggs

3. In a female, the first stage in the production of egg cells occurs
A. after pregnancy.
B. every month.
C. during puberty.
D. before birth.

4. Testosterone is a steroid hormone that controls the development of sperm and
A. a fully developed ovum.
B. estrogen, LH, and FSH.
C. fat deposits and bone mass.
D. male sexual characteristics.

5. During sexual stimulation, mature sperm leave the epididymis and enter the
A. gall bladder.
B. prostate gland.
C. vas deferens.
D. lower scrotum.

6. How many sperm enter the egg to fertilize it?
A. One
B. Two
C. Three
D. Many

7. Where does fertilization take place?
A. In the ovaries
B. In the fallopian tubes
C. In the uterus
D. In the vagina

8. Which of the following is the correct order for the path a sperm takes to the egg for fertilization?
A. vagina-cervix-uterus-fallopian tubes
B. vagina-cervix-fallopian tubes-uterus
C. cervix-vagina-uterus-fallopian tubes
D. cervix-uterus-vagina-fallopian tubes

9. In the ovaries, increased levels of FSH and LH cause a follicle to rupture, resulting in
A. ovulation.
B. menstruation.
C. infertility.
D. menopause.

10. In the menstrual cycle, when do levels of luteinizing hormone rise most dramatically?
A. Just before the flow phase
B. In the absence of estrogen
C. During the follicular phase
D. After ovulation is finished

11. A fertilized egg that has attached to the uterine wall and has begun to form three layers is called a(n)
A. zygote.
B. blastocyst.
C. embryo.
D. fetus.

12. Which event occurs during the second trimester of pregnancy?
A. Heart starts beating
B. Brain grows rapidly
C. Lungs entirely mature
D. Fingers begin to form

13. During which trimester is a fetus most at risk for damage caused by mutation or genetic errors?
A. First
B. Second
C. Third
D. All

14. Which event is a characteristic of the third trimester of pregnancy?
A. Heart begins to beat
B. Lungs are fully developed
C. Fingers are forming
D. Embryo first moves

15. What stage in fetal development does the structure shown in Figure 34.1 go through first?
A. Implantation
B. Division
C. Layer development
D. Determination

16. Which life stage marks the beginning of sexual maturity?
A. Infancy
B. Childhood
C. Puberty
D. Adulthood

17. Skin becomes thinner and less elastic and muscle mass decreases in the latter part of which stage of life?
A. Infancy
B. Childhood
C. Adolescence
D. Adulthood

18. Which is a characteristic of infancy?
A. Relatively little physical growth
B. Development of large-motor skills
C. Replacement of muscle mass by fat
D. Understanding of others’ emotions

19. Which of the following events is characteristic of childhood?
A. Growth of about 10 inches per year
B. Ability to sit and stand with support
C. Vocabulary of several simple words
D. Development of fine-motor skills

20. The production of luteinizing hormone and follicle-stimulating hormone marks the beginning of which life stage?
A. Infancy
B. Pregnancy
C. Puberty
D. Aging

21. The main function of the placenta is to
A. cushion and protect the growing fetus.
B. exchange nutrients, gases, and wastes.
C. maintain a constant body temperature.
D. provide blood to the fetal circulation.

22. The release of LH and FSH by the male pituitary gland results in
A. decreased sperm production.
B. stimulation of the hypothalamus.
C. increased testosterone levels.
D. suppression of the pituitary.

23. What is a zygote?
A. The head region of a sperm that helps a sperm enter an egg
B. A fertilized egg that has 23 chromosomes from each parent
C. An area on the egg’s membrane where sperm are able to enter
D. The whip like tail of a sperm that enables it to swim to the egg

24. Which of the following STDs has no cure?
A. chlamydia
B. trichomoniasis
C. gonorrhea
D. genital herpes

25. The embryo is most susceptible to damage from mutations or genetic errors during weeks
A. 0 to 1.
B. 1 to 12.
C. 13 to 27.
D. 28 to 40.

Tags: Assigment, blastocyst, bone mass, egg cells, epididymis, fallopian tube, fallopian tubes, follicular phase, fsh, gall bladder, menstrual cycle, ovaries, prostate gland, second trimester, second trimester of pregnancy, sexual characteristics, sexual stimulation, steroid hormone, trimester of pregnancy, vas deferens, zygote

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