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The end of the uterus that opens to the vagina is the:


A) Labia minora
B) Cervix
C) Vaginal orifice
D) Clitoris
E) Labia majora

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

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

Correct Answer

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


A) Testes, sperm cells
B) Gonads, germ cells
C) Ovaries, egg cells
D) Bulbo-urethral glands, germ cells
E) All are correct

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

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Which of the following is not found on a sperm cell?


A) Flagellum
B) Cilia
C) Nucleus
D) Acrosome
E) Mitochondria

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

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Cilia sweep the released mature oocytes from ovaries into the:


A) Cervix
B) Uterine tubes
C) Pubic symphysis
D) Uterus
E) Vagina

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

Correct Answer

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figure 34.25 figure 34.25   -In figure 34.25,what is the independent variable? A) The size of the male B) How successful a male was at fertilizing a female C) If a male acted as a female D) If a male removed the sperm packet that other males had implanted into a female E) How long a male guarded a female -In figure 34.25,what is the independent variable?


A) The size of the male
B) How successful a male was at fertilizing a female
C) If a male acted as a female
D) If a male removed the sperm packet that other males had implanted into a female
E) How long a male guarded a female

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

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A teratogen that women had taken as a tranquilizer to relieve morning sickness that caused deformed limbs in developing embryos during the late 1950s was:


A) Acetaminophen
B) Acutane
C) Erythromycin
D) Thalidomide
E) Penicillin

F) None of the above
G) D) and E)

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A flexible rod-like structure that forms the basic framework of the vertebral column is the notochord.

A) True
B) False

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The surge of the hormone _______________ in the bloodstream of the female triggers ovulation.


A) FSH
B) LH
C) Estrogen
D) Progesterone
E) GnRH

F) A) and B)
G) None of the above

Correct Answer

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The structure that secretes most of the fluid found in the semen and opens into the vas deferens is the:


A) Epididymis
B) Bulbo-urethral gland
C) Ejaculatory duct
D) Seminal vesicle
E) Seminiferous tubule

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

Correct Answer

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In females nearly all cases of ________________ cancer are associated with the human papillomavirus.


A) Ovarian
B) Lung
C) Breast
D) Cervical
E) All are correct

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

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The cap-like __________________ covers the head of the sperm and releases enzymes that will help the sperm penetrate the egg.


A) Epididymis
B) Vas deferens
C) Acrosome
D) Mitochondria
E) Nucleus

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

Correct Answer

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A tubal ligation is a surgical procedure in which the fallopian tubes are severed,and then tied.How would this cause sterility?


A) Oocytes cannot be produced by meiosis
B) Oocytes cannot move to the uterus
C) Oocytes cannot be produced by mitosis
D) A woman cannot have an orgasm
E) The ovary stops producing estrogen

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

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When a spermatogonium divides mitotically,one daughter cell remains in the seminiferous tubule wall and acts as stem cell that gives rise to cells that specialize into sperm.

A) True
B) False

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The gland that forms from ruptured follicle cells in the ovary and secretes estrogen and progesterone is the:


A) Bulbo-urethral gland
B) Prostate gland
C) Pubis symphysis
D) Pineal gland
E) Corpeus luteum

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

Correct Answer

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The diploid first cell of a new organism is a:


A) Gamete
B) Morula
C) Polar body
D) Zygote
E) Oogonium

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

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Human spermatogonia:


A) Are diploid cells that reside within the seminiferous tubules
B) Are germ cells
C) Are germ cells that reside within the seminiferous tubules
D) Reside within the seminiferous tubules
E) Are diploid

F) A) and B)
G) None of the above

Correct Answer

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Thalidomide was given to pregnant women from 1957-1961 to help relieve the symptoms of morning sickness.Thalidomide binds to and inactivates the protein cereblon,which is important in limb formation.If a woman took thalidomide during the _____ period of her baby's development,it could result in stunted growth of their limbs.


A) Preembryonic
B) Fetal
C) Prezygotic
D) Embryonic
E) Delivery

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

Correct Answer

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Menopause:


A) Is the cessation of menstruation
B) Is the cessation of sperm production
C) Is the beginning of menstruation
D) Begins in most females at puberty
E) Begins in most males at puberty

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

Correct Answer

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


A) Diploid zygotes
B) Haploid zygotes
C) Haploid gametes
D) Diploid gametes
E) Diploid morulas

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

Correct Answer

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