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Fertilization of a secondary oocyte normally occurs in the


A) ovary.
B) vagina.
C) uterine tube.
D) uterus.
E) peritoneal cavity.

F) A) and E)
G) All of the above

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In organisms that reproduce sexually,________ are the sex cells that carry the genetic information from each parent.


A) diploid gametes
B) diploid morulas
C) diploid zygotes
D) haploid gametes
E) haploid zygotes

F) A) and C)
G) C) and E)

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What results when the sex cells of a male animal and a female animal unite,the resulting cell is called a


A) gamete.
B) morula.
C) polar body.
D) zygote.
E) oogonium.

F) B) and E)
G) A) and D)

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No matter what else occurred,pregnancy would be impossible if a woman lost her


A) ovary.
B) pubic symphysis.
C) vagina.
D) uterus.
E) vulva.

F) All of the above
G) A) and E)

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Testosterone is a male sex hormone.

A) True
B) False

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Chlamydia is a sexually transmitted disease which is a major cause of female infertility.

A) True
B) False

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Trihydroxytestosterone is a male sex hormone.

A) True
B) False

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The hormone released by the anterior pituitary that stimulates the development of the corpus luteum is


A) GnRH.
B) FSH.
C) LH.
D) ADH.
E) progesterone.

F) A) and B)
G) A) and C)

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Male Australian redback spiders are much larger than the females.

A) True
B) False

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In the human male and female reproductive systems,each system contains paired primary sex organs called _____,which contain _____ cells that give rise to gametes.


A) testes; sperm
B) gonads; germ
C) ovaries; egg
D) bulbourethral glands; germ
E) All of the answer choices are correct.

F) B) and D)
G) A) and B)

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The first diploid cell giving rise,ultimately,to human eggs,is the primary oocyte.

A) True
B) False

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A female salmon laying unfertilized eggs in a nest is preparing them for ____ by a male salmon.


A) external fertilization
B) internal fertilization
C) indirect development
D) direct development
E) differentiation

F) C) and D)
G) A) and B)

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In humans,the transparent sac that contains fluid that cushions the embryo and maintains a constant temperature and pressure is the


A) amnion.
B) yolk sac.
C) embryonic disc.
D) chorionic villus.
E) chorion.

F) A) and E)
G) A) and B)

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Birth control pills generally contain only estrogen.

A) True
B) False

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If you were presented with a patient whose STD responded to drugs specifically directed against protists,you would diagnose


A) trichomoniasis.
B) HIV.
C) HPV.
D) Chlamydia.
E) a yeast infection.

F) All of the above
G) D) and E)

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Human spermatogonia


A) are diploid.
B) are diploid cells that reside within the seminiferous tubules.
C) are germ cells.
D) are germ cells that reside within the seminiferous tubules.
E) reside within the seminiferous tubules.

F) C) and E)
G) B) and D)

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The correct sequence for the stages in development from conception to birth is


A) preembryonic stage, zygote, embryonic stage, fetal stage.
B) fetal stage, zygote, preembryonic stage, embryonic stage.
C) preembryonic stage, embryonic stage, zygote, fetal stage.
D) zygote, preembryonic stage, embryonic stage, fetal stage.
E) fetal stage, embryonic stage, preembryonic stage, zygote.

F) B) and C)
G) B) and E)

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The hormone released from the hypothalamus that stimulates release of LH and FSH in both the male and female is


A) human growth hormone.
B) testosterone.
C) gonadotropin-releasing hormone.
D) antidiuretic hormone.
E) epinephrine.

F) C) and E)
G) All of the above

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If you were observing an early stage in human development at which endoderm,mesoderm,and ectoderm had just formed,you would be looking at a


A) zygote.
B) gastrula.
C) embryonic stage.
D) morula.
E) fetal stage.

F) B) and C)
G) A) and E)

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If a woman in labor has her cervix dilate,but her contractions remain too weak,what should be given to help her labor progress?


A) oxytocin
B) progesterone
C) estrogen
D) calcium
E) testosterone

F) A) and C)
G) B) and E)

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