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10,800 | NDQ_008379 | male reproductive system | Which of the following statements about sperm is false? | null | null | Multiple Choice | a. Sperm are gametes., b. Sperm are diploid cells., c. The only role of sperm is reproduction., d. Only mature sperm have a tail. | b |
10,801 | NDQ_008380 | male reproductive system | How many sperm does the average adult male produce each day? | null | null | Multiple Choice | a. about ten, b. several dozen, c. a few hundred, d. millions | d |
10,802 | NDQ_008381 | male reproductive system | Sperm cells leave the body through the | null | null | Multiple Choice | a. ureter., b. vas deferens., c. epididymis., d. urethra. | d |
10,803 | NDQ_008382 | male reproductive system | The scrotum contains the | null | null | Multiple Choice | a. testes., b. epididymis., c. prostate gland., d. two of the above | d |
10,804 | NDQ_008383 | male reproductive system | The acrosome of a sperm | null | null | Multiple Choice | a. is at the end of the tail., b. contains enzymes., c. makes the tail move., d. two of the above | b |
10,805 | NDQ_008384 | male reproductive system | For sperm to form and mature, it takes up to two | null | null | Multiple Choice | a. days., b. weeks., c. months., d. years. | c |
10,806 | NDQ_008385 | male reproductive system | The reproductive system is the only human body system that differs significantly between males and | null | null | Multiple Choice | a. true, b. false | a |
10,807 | NDQ_008386 | male reproductive system | Both mitosis and meiosis are involved in the production of sperm. | null | null | Multiple Choice | a. true, b. false | a |
10,808 | NDQ_008387 | male reproductive system | Testosterone causes the voice to deepen when a male goes through puberty. | null | null | Multiple Choice | a. true, b. false | a |
10,809 | NDQ_008388 | male reproductive system | The only external male reproductive organ is the penis. | null | null | Multiple Choice | a. true, b. false | b |
10,810 | NDQ_008389 | male reproductive system | Testosterone is a hormone secreted by the prostate gland. | null | null | Multiple Choice | a. true, b. false | b |
10,811 | NDQ_008390 | male reproductive system | Sperm are stored in the vas deferens until they leave the body. | null | null | Multiple Choice | a. true, b. false | b |
10,812 | NDQ_008391 | male reproductive system | A teaspoon of semen may contain as many as half a billion sperm. | null | null | Multiple Choice | a. true, b. false | a |
10,813 | NDQ_008392 | female reproductive system | Fertilization of an egg normally takes place while the egg is in the | null | null | Multiple Choice | a. vagina., b. uterus., c. cervix., d. fallopian tube. | d |
10,814 | NDQ_008393 | female reproductive system | __structure where fertilization of an egg normally occurs | null | null | Multiple Choice | a. a.estrogen, b. b.uterus, c. c.cervix, d. d.vagina, e. e.egg, f. f.fallopian tube, g. g.ovary | f |
10,815 | NDQ_008394 | female reproductive system | __cylinder-shaped organ through which a baby passes during birth | null | null | Multiple Choice | a. a.estrogen, b. b.uterus, c. c.cervix, d. d.vagina, e. e.egg, f. f.fallopian tube, g. g.ovary | d |
10,816 | NDQ_008395 | female reproductive system | Which statement about human eggs is false? | null | null | Multiple Choice | a. Eggs are haploid gametes., b. Eggs are the largest human cells., c. There are billions of eggs in each ovary at birth., d. none of the above | c |
10,817 | NDQ_008396 | female reproductive system | Which statement about the human uterus is false? | null | null | Multiple Choice | a. It is a hollow organ., b. It has thick, muscular walls., c. It has just one opening, called the cervix., d. It can stretch to accommodate a growing baby. | c |
10,818 | NDQ_008397 | female reproductive system | __one of a pair of organs that produce and release eggs | null | null | Multiple Choice | a. a.estrogen, b. b.uterus, c. c.cervix, d. d.vagina, e. e.egg, f. f.fallopian tube, g. g.ovary | g |
10,819 | NDQ_008398 | female reproductive system | __organ where a fetus develops and grows until birth | null | null | Multiple Choice | a. a.estrogen, b. b.uterus, c. c.cervix, d. d.vagina, e. e.egg, f. f.fallopian tube, g. g.ovary | b |
10,820 | NDQ_008399 | female reproductive system | Which of the following organs opens directly to the surface of the body? | null | null | Multiple Choice | a. ovary, b. fallopian tube, c. vagina, d. uterus | c |
10,821 | NDQ_008400 | female reproductive system | __female gamete | null | null | Multiple Choice | a. a.estrogen, b. b.uterus, c. c.cervix, d. d.vagina, e. e.egg, f. f.fallopian tube, g. g.ovary | e |
10,822 | NDQ_008401 | female reproductive system | The structure in which an egg develops inside an ovary is called a | null | null | Multiple Choice | a. fimbria., b. follicle., c. fallopian tube., d. none of the above | b |
10,823 | NDQ_008403 | female reproductive system | __small opening that connects the uterus to the vagina | null | null | Multiple Choice | a. a.estrogen, b. b.uterus, c. c.cervix, d. d.vagina, e. e.egg, f. f.fallopian tube, g. g.ovary | c |
10,824 | NDQ_008405 | female reproductive system | __main female sex hormone | null | null | Multiple Choice | a. a.estrogen, b. b.uterus, c. c.cervix, d. d.vagina, e. e.egg, f. f.fallopian tube, g. g.ovary | a |
10,825 | NDQ_008413 | female reproductive system | Estrogen causes the changes of puberty in females. | null | null | Multiple Choice | a. true, b. false | a |
10,826 | NDQ_008414 | female reproductive system | Following puberty, an egg is released by each ovary about once a week. | null | null | Multiple Choice | a. true, b. false | b |
10,827 | NDQ_008416 | female reproductive system | Estrogen is secreted by female gonads. | null | null | Multiple Choice | a. true, b. false | a |
10,828 | NDQ_008419 | female reproductive system | To fertilize an egg, sperm must swim from the vagina to an ovary. | null | null | Multiple Choice | a. true, b. false | b |
10,829 | NDQ_008420 | female reproductive system | The menstrual cycle is also called a menstrual period. | null | null | Multiple Choice | a. true, b. false | b |
10,830 | NDQ_008421 | female reproductive system | The main female reproductive organs are inside the body. | null | null | Multiple Choice | a. true, b. false | a |
10,831 | NDQ_008422 | female reproductive system | The male and female reproductive systems have identical functions. | null | null | Multiple Choice | a. true, b. false | b |
10,832 | NDQ_008423 | female reproductive system | Estrogen is needed for an adult woman to release eggs from the ovaries. | null | null | Multiple Choice | a. true, b. false | a |
10,833 | NDQ_008424 | female reproductive system | The ovaries make eggs only after a female has gone through puberty. | null | null | Multiple Choice | a. true, b. false | b |
10,834 | NDQ_008425 | female reproductive system | The upper end of each fallopian tube is attached to an ovary. | null | null | Multiple Choice | a. true, b. false | b |
10,835 | NDQ_008426 | female reproductive system | An egg completes meiosis just before it leaves the ovary. | null | null | Multiple Choice | a. true, b. false | b |
10,836 | NDQ_008427 | female reproductive system | While an egg is developing in a follicle, the lining of the uterus breaks down and passes out of the | null | null | Multiple Choice | a. true, b. false | b |
10,837 | NDQ_008428 | female reproductive system | When a girl is born, how many eggs does each of her ovaries normally contain? | null | null | Multiple Choice | a. none, b. a few, c. about a hundred, d. thousands | d |
10,838 | NDQ_008429 | female reproductive system | Which female reproductive structure secretes estrogen? | null | null | Multiple Choice | a. uterus, b. vagina, c. ovary, d. cervix | c |
10,839 | NDQ_008430 | female reproductive system | An egg reaches the uterus through | null | null | Multiple Choice | a. a fallopian tube., b. the vagina., c. the cervix., d. none of the above | a |
10,840 | NDQ_008431 | female reproductive system | The walls of the uterus | null | null | Multiple Choice | a. can stretch., b. are muscular., c. push out a baby during birth., d. all of the above | d |
10,841 | NDQ_008432 | female reproductive system | For fertilization to take place, sperm generally must be deposited in the | null | null | Multiple Choice | a. ovary., b. fimbria., c. uterus., d. vagina. | d |
10,842 | NDQ_008433 | female reproductive system | A human egg cell | null | null | Multiple Choice | a. contains very little cytoplasm., b. is a diploid cell., c. lacks a tail., d. two of the above | c |
10,843 | NDQ_008434 | female reproductive system | The changes of the menstrual cycle take place in the | null | null | Multiple Choice | a. ovaries., b. uterus., c. labium., d. two of the above | d |
10,844 | NDQ_008435 | reproduction and life stages | The layer of a blastocyst that develops into the placenta is the | null | null | Multiple Choice | a. embryoblast., b. blastoblast., c. trophoblast., d. photoblast. | c |
10,845 | NDQ_008436 | reproduction and life stages | What happens when a sperm penetrates the cell membrane of an egg? | null | null | Multiple Choice | a. The egg completes meiosis., b. The sperms tail falls off., c. The nuclei of sperm and egg fuse., d. all of the above | d |
10,846 | NDQ_008437 | reproduction and life stages | After fertilization occurs, how long does it normally take for the blastocyst to reach the uterus and implant in the uterine lining? | null | null | Multiple Choice | a. about an hour, b. about a day, c. about a week, d. about a month | c |
10,847 | NDQ_008438 | reproduction and life stages | By the end of the embryonic stage, the embryo is about | null | null | Multiple Choice | a. 1 inch long., b. 6 inches long., c. 1 foot long., d. 1.5 feet long. | a |
10,848 | NDQ_008439 | reproduction and life stages | During which stage of development do most organs start to form? | null | null | Multiple Choice | a. blastocyst, b. embryo, c. fetus, d. infancy | b |
10,849 | NDQ_008440 | reproduction and life stages | Which of these events occurs during the embryonic stage? | null | null | Multiple Choice | a. The eyelids form., b. The heart begins to beat., c. Tooth buds appear., d. all of the above | b |
10,850 | NDQ_008441 | reproduction and life stages | Which of the following changes does not occur during the fetal stage? | null | null | Multiple Choice | a. The blood starts to circulate., b. The brain becomes active., c. Alveoli form in the lungs., d. Muscles develop. | a |
10,851 | NDQ_008442 | reproduction and life stages | About how much does a 38-week fetus weigh? | null | null | Multiple Choice | a. 12 pounds, b. 35 pounds, c. 610 pounds, d. 1116 pounds | c |
10,852 | NDQ_008443 | reproduction and life stages | At about how many weeks after fertilization does birth typically occur? | null | null | Multiple Choice | a. 16, b. 24, c. 32, d. 38 | d |
10,853 | NDQ_008444 | reproduction and life stages | The placenta allows the maternal and fetal blood to | null | null | Multiple Choice | a. mix together., b. come close together., c. exchange substances., d. two of the above | d |
10,854 | NDQ_008446 | reproduction and life stages | During infancy, which of these developments generally occurs first ? | null | null | Multiple Choice | a. sitting, b. babbling, c. crawling, d. smiling | d |
10,855 | NDQ_008448 | reproduction and life stages | During which of the following life stages is growth in height and weight usually most rapid? | null | null | Multiple Choice | a. infancy, b. early childhood, c. middle childhood, d. late childhood | a |
10,856 | NDQ_008456 | reproduction and life stages | A babys first teeth start coming in at about 12 months of age. | null | null | Multiple Choice | a. true, b. false | b |
10,857 | NDQ_008457 | reproduction and life stages | Toddlers grow more rapidly than infants. | null | null | Multiple Choice | a. true, b. false | b |
10,858 | NDQ_008459 | reproduction and life stages | Puberty occurs at the same age in all children. | null | null | Multiple Choice | a. true, b. false | b |
10,859 | NDQ_008462 | reproduction and life stages | A boys voice deepens at puberty as his larynx grows bigger. | null | null | Multiple Choice | a. true, b. false | a |
10,860 | NDQ_008463 | reproduction and life stages | People generally start showing signs of aging in middle adulthood. | null | null | Multiple Choice | a. true, b. false | a |
10,861 | NDQ_008464 | reproduction and life stages | A zygote has the haploid number of chromosomes. | null | null | Multiple Choice | a. true, b. false | b |
10,862 | NDQ_008465 | reproduction and life stages | As soon as a zygote starts to divide, it is called an embryo. | null | null | Multiple Choice | a. true, b. false | b |
10,863 | NDQ_008466 | reproduction and life stages | Most organs start to form during the embryonic stage. | null | null | Multiple Choice | a. true, b. false | a |
10,864 | NDQ_008467 | reproduction and life stages | The fetal period typically lasts about 30 weeks. | null | null | Multiple Choice | a. true, b. false | a |
10,865 | NDQ_008468 | reproduction and life stages | The purpose of the placenta is to cushion the fetus and protect it from injury. | null | null | Multiple Choice | a. true, b. false | b |
10,866 | NDQ_008469 | reproduction and life stages | The umbilical cord is cut only after the baby starts to breathe on its own. | null | null | Multiple Choice | a. true, b. false | b |
10,867 | NDQ_008470 | reproduction and life stages | Puberty generally occurs at an earlier age in girls than in boys. | null | null | Multiple Choice | a. true, b. false | a |
10,868 | NDQ_008471 | reproduction and life stages | __process in which a blastocyst embeds in the uterine lining | null | null | Multiple Choice | a. a.placenta, b. b.blastocyst, c. c.amniotic sac, d. d.zygote, e. e.trophoblast, f. f.implantation, g. g.umbilical cord | f |
10,869 | NDQ_008472 | reproduction and life stages | __fluid-filled membrane that surrounds and protects a fetus | null | null | Multiple Choice | a. a.placenta, b. b.blastocyst, c. c.amniotic sac, d. d.zygote, e. e.trophoblast, f. f.implantation, g. g.umbilical cord | c |
10,870 | NDQ_008473 | reproduction and life stages | __fluid-filled ball of cells that forms soon after fertilization occurs | null | null | Multiple Choice | a. a.placenta, b. b.blastocyst, c. c.amniotic sac, d. d.zygote, e. e.trophoblast, f. f.implantation, g. g.umbilical cord | b |
10,871 | NDQ_008474 | reproduction and life stages | __cell layer in the blastocyst that will develop into the placenta | null | null | Multiple Choice | a. a.placenta, b. b.blastocyst, c. c.amniotic sac, d. d.zygote, e. e.trophoblast, f. f.implantation, g. g.umbilical cord | e |
10,872 | NDQ_008475 | reproduction and life stages | __tube containing blood vessels that connects a fetus to the placenta | null | null | Multiple Choice | a. a.placenta, b. b.blastocyst, c. c.amniotic sac, d. d.zygote, e. e.trophoblast, f. f.implantation, g. g.umbilical cord | g |
10,873 | NDQ_008476 | reproduction and life stages | __cell that results when a sperm fertilizes an egg | null | null | Multiple Choice | a. a.placenta, b. b.blastocyst, c. c.amniotic sac, d. d.zygote, e. e.trophoblast, f. f.implantation, g. g.umbilical cord | d |
10,874 | NDQ_008477 | reproduction and life stages | __temporary organ consisting of blood vessels from both the mother and fetus | null | null | Multiple Choice | a. a.placenta, b. b.blastocyst, c. c.amniotic sac, d. d.zygote, e. e.trophoblast, f. f.implantation, g. g.umbilical cord | a |
10,875 | NDQ_008478 | reproductive system health | Which STI cannot be cured with antibiotics? | null | null | Multiple Choice | a. gonorrhea, b. genital herpes, c. syphilis, d. chlamydia | b |
10,876 | NDQ_008479 | reproductive system health | __serious condition that may occur if tampons are not changed often | null | null | Multiple Choice | a. a.chlamydia, b. b.STI, c. c.genital warts, d. d.HPV, e. e.AIDS, f. f.toxic shock syndrome, g. g.HIV | f |
10,877 | NDQ_008480 | reproductive system health | __any sexually transmitted infection | null | null | Multiple Choice | a. a.chlamydia, b. b.STI, c. c.genital warts, d. d.HPV, e. e.AIDS, f. f.toxic shock syndrome, g. g.HIV | b |
10,878 | NDQ_008481 | reproductive system health | Most females should start regular breast cancer screening at about age | null | null | Multiple Choice | a. 10 years., b. 20 years., c. 30 years., d. 40 years. | d |
10,879 | NDQ_008482 | reproductive system health | Which age group has the greatest risk of cancer of the testes? | null | null | Multiple Choice | a. below age 15 years, b. between ages 15 and 35 years, c. between ages 35 and 50 years, d. older than age 50 years | b |
10,880 | NDQ_008483 | reproductive system health | __virus that causes genital warts | null | null | Multiple Choice | a. a.chlamydia, b. b.STI, c. c.genital warts, d. d.HPV, e. e.AIDS, f. f.toxic shock syndrome, g. g.HIV | d |
10,881 | NDQ_008484 | reproductive system health | __virus that may cause AIDS | null | null | Multiple Choice | a. a.chlamydia, b. b.STI, c. c.genital warts, d. d.HPV, e. e.AIDS, f. f.toxic shock syndrome, g. g.HIV | g |
10,882 | NDQ_008485 | reproductive system health | Ways STIs may spread include | null | null | Multiple Choice | a. exposure to contaminated blood., b. childbirth., c. sexual contact., d. all of the above | d |
10,883 | NDQ_008486 | reproductive system health | __viral STI that can be prevented with a vaccine | null | null | Multiple Choice | a. a.chlamydia, b. b.STI, c. c.genital warts, d. d.HPV, e. e.AIDS, f. f.toxic shock syndrome, g. g.HIV | c |
10,884 | NDQ_008487 | reproductive system health | Which STI can be prevented with a vaccine? | null | null | Multiple Choice | a. genital herpes, b. AIDS, c. syphilis, d. genital warts | d |
10,885 | NDQ_008489 | reproductive system health | __disease that may develop in someone infected with HIV | null | null | Multiple Choice | a. a.chlamydia, b. b.STI, c. c.genital warts, d. d.HPV, e. e.AIDS, f. f.toxic shock syndrome, g. g.HIV | e |
10,886 | NDQ_008491 | reproductive system health | __most common bacterial STI in the U.S. | null | null | Multiple Choice | a. a.chlamydia, b. b.STI, c. c.genital warts, d. d.HPV, e. e.AIDS, f. f.toxic shock syndrome, g. g.HIV | a |
10,887 | NDQ_008499 | reproductive system health | An STI is any medical problem that affects the reproductive organs. | null | null | Multiple Choice | a. true, b. false | b |
10,888 | NDQ_008500 | reproductive system health | STIs always cause symptoms. | null | null | Multiple Choice | a. true, b. false | b |
10,889 | NDQ_008502 | reproductive system health | STIs are most common in teens and young adults. | null | null | Multiple Choice | a. true, b. false | a |
10,890 | NDQ_008505 | reproductive system health | HIV destroys lymphocytes that normally fight infections. | null | null | Multiple Choice | a. true, b. false | a |
10,891 | NDQ_008506 | reproductive system health | It is normal to have abdominal cramps during menstruation. | null | null | Multiple Choice | a. true, b. false | a |
10,892 | NDQ_008507 | reproductive system health | Many STIs can spread through body fluids such as blood. | null | null | Multiple Choice | a. true, b. false | a |
10,893 | NDQ_008508 | reproductive system health | A person with just one sexual partner cannot get STIs by sexual contact. | null | null | Multiple Choice | a. true, b. false | b |
10,894 | NDQ_008509 | reproductive system health | Untreated STIs may lead to the inability to have children. | null | null | Multiple Choice | a. true, b. false | a |
10,895 | NDQ_008510 | reproductive system health | Viral STIs usually last for life. | null | null | Multiple Choice | a. true, b. false | a |
10,896 | NDQ_008511 | reproductive system health | AIDS is diagnosed in anyone who has an HIV infection. | null | null | Multiple Choice | a. true, b. false | b |
10,897 | NDQ_008512 | reproductive system health | Injuries to the testes are very rare. | null | null | Multiple Choice | a. true, b. false | b |
10,898 | NDQ_008513 | reproductive system health | Ovarian cysts are usually harmless. | null | null | Multiple Choice | a. true, b. false | a |
10,899 | NDQ_008514 | reproductive system health | In which of the following age groups are STIs most common? | null | null | Multiple Choice | a. preteens, b. teens and young adults, c. middle-aged adults, d. elderly adults | b |
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