front 1 1) Regeneration, the regrowth of lost body parts, normally follows
| back 1 Answer: D |
front 2 2) One of the evolutionary "enigmas," or unsolved puzzles,
of sexual reproduction is that | back 2 Answer: B |
front 3 3) An advantage of asexual reproduction is that | back 3 Answer: C |
front 4 4) Genetic mutations in asexually reproducing organisms lead to more
evolutionary change than do genetic mutations in sexually reproducing
ones because | back 4 Answer: A |
front 5 5) Asexual reproduction results in greater reproductive success than
does sexual reproduction when | back 5 Answer: E |
front 6 6) Sexual reproduction patterns include the example of | back 6 Answer: C |
front 7 7) Sexual reproduction | back 7 Answer: B |
front 8 8) Environmental cues that influence the timing of reproduction
generally do so by | back 8 Answer: E |
front 9 9) For water fleas of the genus Daphnia, switching from a pattern of
asexual reproduction to sexual reproduction coincides with | back 9 Answer: C |
front 10 10) All individuals of a particular species of whiptail lizards are
females. Their reproductive efforts depend on | back 10 Answer: C |
front 11 11) Evidence that parthenogenic whiptail lizards are derived from
sexually reproducing ancestors includes | back 11 Answer: A |
front 12 12) Like many other fishes, bluehead wrasses utilize harem mating as
they reproduce sexually. However, unlike most fishes, | back 12 Answer: E |
front 13 13) Which of the following patterns of reproduction are found only
among invertebrate animals? | back 13 Answer: E |
front 14 14) Animals with reproduction dependent on internal fertilization
need not have | back 14 Answer: D |
front 15 15) In close comparisons, external fertilization often yields more
offspring than does internal fertilization. However, internal
fertilization offers the advantage that | back 15 Answer: C |
front 16 16) Internal and external fertilization both | back 16 Answer: A |
front 17 17) Organisms with a reproductive pattern that produces shelled
amniotic eggs generally | back 17 Answer: B |
front 18 18) Among nonmammalian vertebrates, the cloaca is an anatomical
structure that functions as | back 18 Answer: B |
front 19 19) External chemical signals that coordinate potential reproductive
partners are called | back 19 Answer: B |
front 20 20) Females of many insect species, including honeybee queens, can
store gametes shed by their mating partners in | back 20 Answer: E |
front 21 21) Most flatworms, including parasitic liver flukes, are
hermaphrodites that form zygotes as the result of | back 21 Answer: A |
front 22 22) When female fruit flies mate with two different males on the same
day, | back 22 Answer: C |
front 23 23) An oocyte released from a human ovary enters the oviduct as a
result of | back 23 Answer: C |
front 24 24) The junction of the upper vagina and the uterus is called the
| back 24 Answer: E |
front 25 25) In humans, the follicular cells that remain behind in the ovary
following ovulation become | back 25 Answer: B |
front 26 26) Among mammals, the male and female genital structures that
consist mostly of erectile tissue include the | back 26 Answer: A |
front 27 27) Testosterone is synthesized primarily by the | back 27 Answer: C |
front 28 28) Sperm cells are stored within human males in the | back 28 Answer: C |
front 29 29) Among human males, both semen and urine normally travel along the
| back 29 Answer: D |
front 30 30) Human sperm cells first arise in the | back 30 Answer: C |
front 31 31) The surgical removal of the seminal vesicles would likely
| back 31 Answer: C |
front 32 32) Most of the noncellular fluid in ejaculated human semen is
composed of | back 32 Answer: C |
front 33 33) Increasing the temperature of the human scrotum by 2°C (i.e.,
near the normal body core temperature) and holding it there would
| back 33 Answer: B |
front 34 34) During human heterosexual (mutual) excitement, vasocongestion
| back 34 Answer: E |
front 35 35) The moment of orgasm is characterized by | back 35 Answer: C |
front 36 36) At the time of fertilization, the complete maturation of each
oogonium has resulted in | back 36 Answer: A |
front 37 37) In vertebrate animals, spermatogenesis and oogenesis differ in
that | back 37 Answer: C |
front 38 38) Mature human sperm and ova are similar in that | back 38 Answer: A |
front 39 39) A male's "primary" sex characteristics include | back 39 Answer: B |
front 40 40) The primary difference between estrous and menstrual cycles is
that | back 40 Answer: A |
front 41 41) At the end of a nonpregnant ovarian cycle, the breakdown and
discharge of the soft uterine tissues is called | back 41 Answer: A |
front 42 42) In correct chronological order, the three phases of the human
ovarian cycle are | back 42 Answer: D |
front 43 43) In correct chronological order, the three phases of the human
uterine cycle are | back 43 Answer: C |
front 44 44) A contraceptive pill that continuously inhibits the release of
GnRH from the hypothalamus will | back 44 Answer: C |
front 45 45) A function-disrupting mutation in the progesterone receptor gene
would likely result in | back 45 Answer: C |
front 46 46) A primary response by the Leydig cells in the testes to the
presence of luteinizing hormone is an increase in the synthesis and
secretion of | back 46 Answer: B |
front 47 47) A reproductive hormone that is secreted directly from a structure
in the brain is | back 47 Answer: E |
front 48 48) The primary function of the corpus luteum is to | back 48 Answer: C |
front 49 49) For the 10 days following ovulation in a nonpregnant menstrual
cycle, the main source of progesterone is the | back 49 Answer: C |
front 50 50) Ovulation is the follicular response to a burst of secretion of
| back 50 Answer: A |
front 51 51) Prior to ovulation, the primary steroid hormone secreted by the
growing follicle is | back 51 Answer: E |
front 52 52) The hypothalamic hormone that stimulates hormone secretion by the
anterior pituitary gland is | back 52 Answer: D |
front 53 53) The hormone progesterone is produced | back 53 Answer: C |
front 54 54) Menopause is characterized by | back 54 Answer: A |
front 55 55) For normal human fertilization to occur, | back 55 Answer: C |
front 56 56) Fertilization of human eggs usually takes place in the | back 56 Answer: D |
front 57 57) What is the embryo-produced hormone that maintains progesterone
and estrogen secretion by the corpus luteum through the first
trimester of pregnancy? | back 57 Answer: D |
front 58 58) The hypothalamic hormone that triggers the secretion of FSH is
| back 58 Answer: E |
front 59 59) Labor contractions can be increased by the medical use of a
synthetic drug that mimics the action of | back 59 Answer: C |
front 60 60) A high rate of metabolic activity is maintained in the pregnant
uterus by | back 60 Answer: E |
front 61 61) The secretion of follicle-stimulating hormone from the anterior
pituitary gland is reduced by | back 61 Answer: A |
front 62 62) The drug RU-486 functions by | back 62 Answer: B |
front 63 63) Human fertility drugs taken by women increase the chance of
multiple births, probably because they | back 63 Answer: B |
front 64 64) The thin layer of the developing embryo which secretes a hormone
that keeps the corpus luteum functioning is the | back 64 Answer: E |
front 65 65) In excreted urine, a reliable "marker" that a pregnancy
has initiated is | back 65 Answer: D |
front 66 66) The "immunotolerance" of a pregnant woman toward her
unborn child is the result of | back 66 Answer: B |
front 67 67) Among these contraception methods, the highest risk of accidental
pregnancy accompanies | back 67 Answer: C |
front 68 68) The use of birth control pills (oral contraceptives) | back 68 Answer: A |
front 69 69) Two contraceptive methods that are generally irreversible and
which block the gametes from moving to a site where fertilization can
occur are | back 69 Answer: C |
front 70 70) Tubal ligation | back 70 Answer: E |
front 71 71) A vasectomy | back 71 Answer: D |
front 72 72) Time-release progesterone implants function in contraception by
| back 72 Answer: B |
front 73 73) For lactation to take place, the synthesis of breast milk and its
release from the mammary gland, respectively, are caused by | back 73 Answer: D |
front 74 74) So-called "combination" birth control pills function in
contraception by | back 74 Answer: A |
front 75 Refer to the following figure, which diagrams the reproductive
anatomy of the human female, to answer the following question. | back 75 Answer: D |
front 76 Refer to the following figure, which diagrams the reproductive
anatomy of the human female, to answer the following question. | back 76 Answer: B |
front 77 Refer to the following figure, which diagrams the reproductive
anatomy of the human female, to answer the following question. | back 77 Answer: C |
front 78 Refer to the following figure, which diagrams the reproductive
anatomy of the human female, to answer the following question. | back 78 Answer: A |
front 79 Refer to the following figure, which diagrams the reproductive
anatomy of the human female, to answer the following question. | back 79 Answer: E |
front 80 Refer to the following figure, which diagrams the reproductive
anatomy of the human male, to answer the following question. | back 80 Answer: C |
front 81 Refer to the following figure, which diagrams the reproductive
anatomy of the human male, to answer the following question. | back 81 Answer: A |
front 82 Refer to the following figure, which diagrams the reproductive
anatomy of the human male, to answer the following question. | back 82 Answer: E |
front 83 Refer to the following figure, which diagrams the reproductive
anatomy of the human male, to answer the following question. | back 83 Answer: B |
front 84 Refer to the following figure, which diagrams the reproductive
anatomy of the human male, to answer the following question. | back 84 Answer: D |
front 85 85) You observe vertebrate organisms with parthenogenetic
reproduction, internal development of embryos, and the lack of
parental care for its young. Based on this information, you should
categorize these organisms as | back 85 Answer: B |
front 86 86) Imagine that a woman is in the final week of her pregnancy. Her
doctor gives her an injection of oxytocin. The likely result of this
is that the pregnant woman would | back 86 Answer: C |
front 87 87) Which of the following characterizes parthenogenesis? | back 87 Answer: D |
front 88 88) In male mammals, excretory and reproductive systems share
| back 88 Answer: B |
front 89 89) Which of the following is not properly paired? | back 89 Answer: A |
front 90 90) Peaks of LH and FSH production occur during | back 90 Answer: C |
front 91 91) During human gestation, rudiments of all organs develop | back 91 Answer: A |
front 92 92) Which of the following is a true statement? | back 92 Answer: B |
front 93 93) For which of the following is the number the same in
spermatogenesis and oogenesis? | back 93 Answer: C |
front 94 94) Which statement about human reproduction is false? | back 94 Answer: D |