Deck 35: Animal Reproduction and Development

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Question
Male Australian redback spiders present themselves to be eaten by their mates.
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Question
As human labor progresses,the woman's body releases more and more hormones that act to increase it.
Question
The process that unites the male gametes with the female gametes in organisms that reproduce sexually is termed

A) conjugation.
B) fertilization.
C) crossing-over.
D) gastrulation.
E) recombination.
Question
In working with an infertile couple,you observe that the wife releases polar bodies each month,wrapped in follicle cells.How would you explain their infertility?

A) The wife's ovaries are not making eggs, just polar bodies.
B) The wife lacks ovaries.
C) The wife has excess estrogen.
D) The wife's ovaries are producing testosterone.
E) None of the answer choices are correct.
Question
The polar body formed after meiosis I becomes the egg cell.
Question
If you observed two female redback spiders,one having 10 offspring and the other 50,what could explain the difference?

A) The female with more offspring ate her mate and was therefore better nourished.
B) The female with fewer offspring has a virus.
C) The female with more offspring has more estrogen.
D) The female with fewer offspring received more sperm from fewer males.
E) The female with more offspring is a better hunter.
Question
Chlamydia is a sexually transmitted disease which is a major cause of female infertility.
Question
If you were observing a newly discovered animal and wanted to determine if it reproduces sexually or asexually,you could best

A) examine parents and offspring to see if the offspring are genetically identical to parents.
B) examine males to see if sperm can be produced.
C) try to observe mating behavior.
D) look carefully for nests with eggs.
E) None of the answer choices are correct.
Question
Consumption of male redback spiders by females keeps numbers of males in check and is an example of homeostasis.
Question
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.
Question
Human childbirth is known as labor.
Question
While observing a newly discovered kind of mouse,you see that its young strongly resemble caterpillars,but the adults look like normal mice.What term can you give for the development of this mouse?

A) direct
B) indirect
C) imcomplete
D) delayed
E) circumstantial
Question
Male redback spiders benefit when they are eaten by their mates because

A) they ultimately have higher reproductive success.
B) they are only partially eaten and can regrow lost parts.
C) they would die soon after copulation anyway.
D) they don't have to fight other males.
E) None of the answer choices are correct.
Question
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
Question
The contraceptive pill prevents both conception of a new life and implantation of the new human embryo in the uterine wall.
Question
Human development is an example of direct development.
Question
Male Australian redback spiders are much larger than the females.
Question
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
Question
The first diploid cell giving rise,ultimately,to human eggs,is the primary oocyte.
Question
Hepatitis B is a sexually transmitted disease.
Question
In females,nearly all cases of _____ cancer are associated with the human papillomavirus.

A) ovarian.
B) lung.
C) breast.
D) cervical.
E) All answer choices are correct.
Question
Mature human sperm cells

A) are spermatozoa.
B) are secondary spermatocytes.
C) contain 46 chromosomes.
D) are primary spermatocytes.
E) undergo meiosis.
Question
In the male,the saclike structure that contains the testes is the

A) epididymis.
B) vas deferens.
C) scrotum.
D) sustentacular cells.
E) seminal vesicle.
Question
Testosterone is a male sex hormone.
Question
Fertilization of a secondary oocyte normally occurs in the

A) ovary.
B) vagina.
C) uterine tube.
D) uterus.
E) peritoneal cavity.
Question
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.
Question
Cilia sweep the released mature oocytes from ovaries into the

A) cervix.
B) uterine tubes.
C) pubic symphysis.
D) uterus.
E) vagina.
Question
If you were grading an exam on which a student had drawn and labelled a sperm cell,which label would lead to a loss of points?

A) flagellum
B) cilia
C) nucleus
D) acrosome
E) mitochondrion
Question
The tubelike structure that serves as the birth canal in the human female is the

A) cervix.
B) vulva.
C) vagina.
D) uterus.
E) uterine tube.
Question
In a secondary oocyte,meiosis is arrested in metaphase II until

A) ovulation.
B) FSH is present.
C) fertilization occurs.
D) LH is secreted by the anterior pituitary.
E) puberty.
Question
If asked to point to the place on a diagram where sperm cells are stored,you would place a pointer on the

A) scrotum.
B) vas deferens.
C) epididymis.
D) bulbourethral gland.
E) seminal vesicle.
Question
If you were diagnosing a case of infertility in a male patient,and you found that his sperm failed to swim,you would diagnose a problem in the

A) bulbourethral gland.
B) seminal vesicle.
C) prostate gland.
D) vas deferens.
E) epididymis.
Question
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.
Question
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.
Question
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.
Question
The tightly coiled structure inside each testis that produces sperm cells is the

A) seminiferous tubule.
B) epididymis.
C) vas deferens.
D) interstitial cell.
E) bulbourethral gland.
Question
Trihydroxytestosterone is a male sex hormone.
Question
In human males,the different types of male sex hormones are collectively called

A) estrogens.
B) growth hormones.
C) progesterones.
D) androgens.
E) follicle-stimulating hormones.
Question
The caplike _____ 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) mitochondrion
E) nucleus
Question
The cells in the ovary that give rise to the mature egg cells are the

A) follicle cells.
B) osteocytes.
C) endometrial cells.
D) polar bodies.
E) primary oocytes.
Question
Substances that cause birth defects are collectively called

A) androgens.
B) prostaglandins.
C) teratogens.
D) follicle-stimulating hormones.
E) None of the answer choices are correct.
Question
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.
Question
The hormone that is the basis of most pregnancy tests is

A) follicle-stimulating hormone.
B) luteinizing hormone.
C) human chorionic gonadotropin.
D) estrogen.
E) progesterone.
Question
Athletes who take synthetic steroids can become sterile due to lack of sperm production.This is because of negative feedback on which of the following?

A) the epididymis
B) the testes
C) the vas deferens
D) the prostate
E) the hypothalamus
Question
A caterpillar turning into a butterfly is an example of

A) direct development.
B) indirect development.
C) external fertilization.
D) internal fertilization.
E) reproduction.
Question
Birth control pills generally contain only estrogen.
Question
In the late 1950s,some women were prescribed a teratogen to relieve symptoms of morning sickness.This drug caused abnormal limb development in the children of these women.What was this drug?

A) acetaminophen
B) acutane
C) erythromycin
D) thalidomide
E) penicillin
Question
The stage of human development that occurs from implantation to about 8 weeks after fertilization is the

A) zygote.
B) morula.
C) gastrula.
D) fetal stage.
E) embryonic stage.
Question
A vasectomy is a surgical procedure in which the vas deferens are severed,and then tied.How would this cause sterility?

A) Sperm cannot be produced by meiosis.
B) Sperm cannot be produced by mitosis.
C) Sperm cannot move to the urethra.
D) A man cannot get an erection.
E) The testes stop producing testosterone.
Question
In humans,if a preembryo splits during the first 2 weeks of development,_____ are usually formed.

A) polar bodies
B) secondary oocytes
C) fraternal twins
D) identical twins
E) embryonic discs
Question
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.
Question
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.
Question
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.
Question
A female chicken laying a fertilized egg has undergone ____ with a rooster.

A) differentiation
B) external fertilization
C) indirect development
D) direct development
E) internal fertilization
Question
If you were measuring hormones in the blood of a patient who was ovulating,you would expect a large increase in which hormone,reaching maximal level on the day of ovulation?

A) FSH
B) LH
C) estrogen
D) progesterone
E) GnRH
Question
A diaphragm is a shallow,dome-shaped rubber disk with a flexible rim that fits within the vagina and covers the cervix.How does this act as a contraceptive to prevent pregnancy?

A) It would prevent sperm from reaching the egg.
B) It would prevent ovulation.
C) It would cause the embryo to die.
D) It would prevent implantation on the uterine wall.
E) If would act as a spermicide, killing sperm.
Question
A baby turtle growing into an adult that appears similar is an example of

A) direct development.
B) indirect development.
C) differentiation.
D) external fertilization.
E) internal fertilization.
Question
After cleavage,the solid ball of 16 or more cells resembling a mulberry that forms is the

A) blastocyst.
B) gastrula.
C) morula.
D) embryonic disc.
E) amnion.
Question
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.
Question
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
Question
A tubal ligation is a surgical procedure in which the uterine 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.
Question
Sea urchins display external fertilization.
Question
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 its limbs.

A) preembryonic
B) fetal
C) prezygotic
D) embryonic
E) delivery
Question
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.
Question
Suppose you are working with a group of poor families with insufficent diets,and asked to predict possible health problems,one of the first you might expect would be many birth defects due to insufficient vitamin intake.
Question
If you were observing the early development of a chick embryo and saw patterns in terms of the placement of head and wings,you would assume that you were seeing the effects of

A) controlled gene expression.
B) temperature.
C) appropriate lighting.
D) sex hormones.
E) All of the answer choices are correct.
Question
In observing an unusual new fish,you see the male come very close to the female and insert a specialized fin into a place where eggs emerge in other fish,leading you to guess that these fish have evolved internal fertilization.
Question
Human sperm swim to the egg.
Question
The second stage of prenatal development is the fetal stage.
Question
In fruit fly development expression of the bicoid gene on one end of the embryo is necessary for proper head positioning.
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Deck 35: Animal Reproduction and Development
1
Male Australian redback spiders present themselves to be eaten by their mates.
True
2
As human labor progresses,the woman's body releases more and more hormones that act to increase it.
False
3
The process that unites the male gametes with the female gametes in organisms that reproduce sexually is termed

A) conjugation.
B) fertilization.
C) crossing-over.
D) gastrulation.
E) recombination.
B
4
In working with an infertile couple,you observe that the wife releases polar bodies each month,wrapped in follicle cells.How would you explain their infertility?

A) The wife's ovaries are not making eggs, just polar bodies.
B) The wife lacks ovaries.
C) The wife has excess estrogen.
D) The wife's ovaries are producing testosterone.
E) None of the answer choices are correct.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
5
The polar body formed after meiosis I becomes the egg cell.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
6
If you observed two female redback spiders,one having 10 offspring and the other 50,what could explain the difference?

A) The female with more offspring ate her mate and was therefore better nourished.
B) The female with fewer offspring has a virus.
C) The female with more offspring has more estrogen.
D) The female with fewer offspring received more sperm from fewer males.
E) The female with more offspring is a better hunter.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
7
Chlamydia is a sexually transmitted disease which is a major cause of female infertility.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
8
If you were observing a newly discovered animal and wanted to determine if it reproduces sexually or asexually,you could best

A) examine parents and offspring to see if the offspring are genetically identical to parents.
B) examine males to see if sperm can be produced.
C) try to observe mating behavior.
D) look carefully for nests with eggs.
E) None of the answer choices are correct.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
9
Consumption of male redback spiders by females keeps numbers of males in check and is an example of homeostasis.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
10
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.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
11
Human childbirth is known as labor.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
12
While observing a newly discovered kind of mouse,you see that its young strongly resemble caterpillars,but the adults look like normal mice.What term can you give for the development of this mouse?

A) direct
B) indirect
C) imcomplete
D) delayed
E) circumstantial
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
13
Male redback spiders benefit when they are eaten by their mates because

A) they ultimately have higher reproductive success.
B) they are only partially eaten and can regrow lost parts.
C) they would die soon after copulation anyway.
D) they don't have to fight other males.
E) None of the answer choices are correct.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
14
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
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
15
The contraceptive pill prevents both conception of a new life and implantation of the new human embryo in the uterine wall.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
16
Human development is an example of direct development.
Unlock Deck
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Unlock Deck
k this deck
17
Male Australian redback spiders are much larger than the females.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
18
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
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
19
The first diploid cell giving rise,ultimately,to human eggs,is the primary oocyte.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
20
Hepatitis B is a sexually transmitted disease.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
21
In females,nearly all cases of _____ cancer are associated with the human papillomavirus.

A) ovarian.
B) lung.
C) breast.
D) cervical.
E) All answer choices are correct.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
22
Mature human sperm cells

A) are spermatozoa.
B) are secondary spermatocytes.
C) contain 46 chromosomes.
D) are primary spermatocytes.
E) undergo meiosis.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
23
In the male,the saclike structure that contains the testes is the

A) epididymis.
B) vas deferens.
C) scrotum.
D) sustentacular cells.
E) seminal vesicle.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
24
Testosterone is a male sex hormone.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
25
Fertilization of a secondary oocyte normally occurs in the

A) ovary.
B) vagina.
C) uterine tube.
D) uterus.
E) peritoneal cavity.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
26
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.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
27
Cilia sweep the released mature oocytes from ovaries into the

A) cervix.
B) uterine tubes.
C) pubic symphysis.
D) uterus.
E) vagina.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
28
If you were grading an exam on which a student had drawn and labelled a sperm cell,which label would lead to a loss of points?

A) flagellum
B) cilia
C) nucleus
D) acrosome
E) mitochondrion
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
29
The tubelike structure that serves as the birth canal in the human female is the

A) cervix.
B) vulva.
C) vagina.
D) uterus.
E) uterine tube.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
30
In a secondary oocyte,meiosis is arrested in metaphase II until

A) ovulation.
B) FSH is present.
C) fertilization occurs.
D) LH is secreted by the anterior pituitary.
E) puberty.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
31
If asked to point to the place on a diagram where sperm cells are stored,you would place a pointer on the

A) scrotum.
B) vas deferens.
C) epididymis.
D) bulbourethral gland.
E) seminal vesicle.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
32
If you were diagnosing a case of infertility in a male patient,and you found that his sperm failed to swim,you would diagnose a problem in the

A) bulbourethral gland.
B) seminal vesicle.
C) prostate gland.
D) vas deferens.
E) epididymis.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
33
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.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
34
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.
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Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
35
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.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
36
The tightly coiled structure inside each testis that produces sperm cells is the

A) seminiferous tubule.
B) epididymis.
C) vas deferens.
D) interstitial cell.
E) bulbourethral gland.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
37
Trihydroxytestosterone is a male sex hormone.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
38
In human males,the different types of male sex hormones are collectively called

A) estrogens.
B) growth hormones.
C) progesterones.
D) androgens.
E) follicle-stimulating hormones.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
39
The caplike _____ 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) mitochondrion
E) nucleus
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
40
The cells in the ovary that give rise to the mature egg cells are the

A) follicle cells.
B) osteocytes.
C) endometrial cells.
D) polar bodies.
E) primary oocytes.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
41
Substances that cause birth defects are collectively called

A) androgens.
B) prostaglandins.
C) teratogens.
D) follicle-stimulating hormones.
E) None of the answer choices are correct.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
42
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.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
43
The hormone that is the basis of most pregnancy tests is

A) follicle-stimulating hormone.
B) luteinizing hormone.
C) human chorionic gonadotropin.
D) estrogen.
E) progesterone.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
44
Athletes who take synthetic steroids can become sterile due to lack of sperm production.This is because of negative feedback on which of the following?

A) the epididymis
B) the testes
C) the vas deferens
D) the prostate
E) the hypothalamus
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
45
A caterpillar turning into a butterfly is an example of

A) direct development.
B) indirect development.
C) external fertilization.
D) internal fertilization.
E) reproduction.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
46
Birth control pills generally contain only estrogen.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
47
In the late 1950s,some women were prescribed a teratogen to relieve symptoms of morning sickness.This drug caused abnormal limb development in the children of these women.What was this drug?

A) acetaminophen
B) acutane
C) erythromycin
D) thalidomide
E) penicillin
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
48
The stage of human development that occurs from implantation to about 8 weeks after fertilization is the

A) zygote.
B) morula.
C) gastrula.
D) fetal stage.
E) embryonic stage.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
49
A vasectomy is a surgical procedure in which the vas deferens are severed,and then tied.How would this cause sterility?

A) Sperm cannot be produced by meiosis.
B) Sperm cannot be produced by mitosis.
C) Sperm cannot move to the urethra.
D) A man cannot get an erection.
E) The testes stop producing testosterone.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
50
In humans,if a preembryo splits during the first 2 weeks of development,_____ are usually formed.

A) polar bodies
B) secondary oocytes
C) fraternal twins
D) identical twins
E) embryonic discs
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
51
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.
Unlock Deck
Unlock for access to all 70 flashcards in this deck.
Unlock Deck
k this deck
52
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.
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53
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.
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54
A female chicken laying a fertilized egg has undergone ____ with a rooster.

A) differentiation
B) external fertilization
C) indirect development
D) direct development
E) internal fertilization
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55
If you were measuring hormones in the blood of a patient who was ovulating,you would expect a large increase in which hormone,reaching maximal level on the day of ovulation?

A) FSH
B) LH
C) estrogen
D) progesterone
E) GnRH
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56
A diaphragm is a shallow,dome-shaped rubber disk with a flexible rim that fits within the vagina and covers the cervix.How does this act as a contraceptive to prevent pregnancy?

A) It would prevent sperm from reaching the egg.
B) It would prevent ovulation.
C) It would cause the embryo to die.
D) It would prevent implantation on the uterine wall.
E) If would act as a spermicide, killing sperm.
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57
A baby turtle growing into an adult that appears similar is an example of

A) direct development.
B) indirect development.
C) differentiation.
D) external fertilization.
E) internal fertilization.
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58
After cleavage,the solid ball of 16 or more cells resembling a mulberry that forms is the

A) blastocyst.
B) gastrula.
C) morula.
D) embryonic disc.
E) amnion.
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59
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.
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60
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
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61
A tubal ligation is a surgical procedure in which the uterine 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.
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62
Sea urchins display external fertilization.
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63
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 its limbs.

A) preembryonic
B) fetal
C) prezygotic
D) embryonic
E) delivery
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64
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.
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65
Suppose you are working with a group of poor families with insufficent diets,and asked to predict possible health problems,one of the first you might expect would be many birth defects due to insufficient vitamin intake.
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66
If you were observing the early development of a chick embryo and saw patterns in terms of the placement of head and wings,you would assume that you were seeing the effects of

A) controlled gene expression.
B) temperature.
C) appropriate lighting.
D) sex hormones.
E) All of the answer choices are correct.
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67
In observing an unusual new fish,you see the male come very close to the female and insert a specialized fin into a place where eggs emerge in other fish,leading you to guess that these fish have evolved internal fertilization.
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68
Human sperm swim to the egg.
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69
The second stage of prenatal development is the fetal stage.
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70
In fruit fly development expression of the bicoid gene on one end of the embryo is necessary for proper head positioning.
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