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1 | |
The development of eggs without fertilization is called _________ and occurs in ________. |
| | A) | hermaphroditism, mammals |
| | B) | hermaphroditism, arthropods |
| | C) | parthenogenesis, mammals, |
| | D) | parthenogenesis, arthropods |
| | E) | spontaneous fertilization, amphibians |
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2 | |
Protogyny and protandry seem to be controlled by |
| | A) | social pressures. |
| | B) | the ability of individuals in the school of fishes to quickly change gender. |
| | C) | the ability of the queen bee to store sperm for long periods of time. |
| | D) | the ability to allow eggs to develop into drones without fertilization. |
| | E) | none of the above |
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3 | |
A difference between ovoviviparity and viviparity is that in |
| | A) | ovoviviparity fertilization of the egg is not necessary to produce another generation, while fertilization is necessary in viviparity. |
| | B) | ovoviviparity the embryo obtains nutrients from the egg yolk, while in viviparity the embryo obtains nutrients from the mother's blood. |
| | C) | ovoviviparity several offspring are produced, while in viviparity only one offspring is produced. |
| | D) | ovoviviparity the offspring obtains nutrients from the mother's blood, while it is in the eggs while in viviparity the embyro receives nutrients from the yolk. |
| | E) | none of the above |
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4 | |
Birds, most reptiles and ______ lay water-tight eggs. |
| | A) | amphibians |
| | B) | bony fishes |
| | C) | monotremes |
| | D) | alligators |
| | E) | sharks |
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5 | |
Cleavage: |
| | A) | gives rise to muscles, vertebrae, and connective tissues |
| | B) | interacts with placental tissues to form placenta |
| | C) | during this stage there is no overall change in the size of the embryo |
| | D) | a fluid-filled cavity |
| | E) | a flexible rod characteristic of vertebrates |
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6 | |
Chorion: |
| | A) | gives rise to muscles, vertebrae, and connective tissues |
| | B) | interacts with placental tissues to form placenta |
| | C) | during this stage there is no overall change in the size of the embryo |
| | D) | a fluid-filled cavity |
| | E) | a flexible rod characteristic of vertebrates |
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7 | |
Blastocoel: |
| | A) | gives rise to muscles, vertebrae, and connective tissues |
| | B) | interacts with placental tissues to form placenta |
| | C) | during this stage there is no overall change in the size of the embryo |
| | D) | a fluid-filled cavity |
| | E) | a flexible rod characteristic of vertebrates |
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8 | |
Notochord: |
| | A) | gives rise to muscles, vertebrae, and connective tissues |
| | B) | interacts with placental tissues to form placenta |
| | C) | during this stage there is no overall change in the size of the embryo |
| | D) | a fluid-filled cavity |
| | E) | a flexible rod characteristic of vertebrates |
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9 | |
Somites: |
| | A) | gives rise to muscles, vertebrae, and connective tissues |
| | B) | interact with placental tissues to form placenta |
| | C) | during this stage there is no overall change in the size of the embryo |
| | D) | a fluid-filled cavity |
| | E) | a flexible rod characteristic of vertebrates |
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10 | |
Rhythm method: |
| | A) | prevents production of FSH and LH |
| | B) | helps prevent delivery of sperm to the uterus |
| | C) | prevents implantation of embryo within uterine wall |
| | D) | avoid sex 2 days prior and after ovulation |
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11 | |
Birth-control pills: |
| | A) | prevent production of FSH and LH |
| | B) | help prevent delivery of sperm to the uterus |
| | C) | prevent implantation of embryo within uterine wall |
| | D) | avoid sex 2 days prior and after ovulation |
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12 | |
Interuterine device: |
| | A) | prevents production of FSH and LH |
| | B) | helps prevent delivery of sperm to the uterus |
| | C) | prevents implantation of embryo within uterine wall |
| | D) | avoid sex 2 days prior and after ovulation |
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13 | |
Condom: |
| | A) | prevents production of FSH and LH |
| | B) | helps prevent delivery of sperm to the uterus |
| | C) | prevents implantation of embryo within uterine wall |
| | D) | avoid sex 2 days prior and after ovulation |
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14 | |
The scrotum is located between the legs of the male rather than located internally because |
| | A) | that is a safer location for the testes. |
| | B) | the temperature is cooler there, allowing sperm to complete their development. |
| | C) | the external location makes it easier to transport sperm to the penis during ejaculation. |
| | D) | the higher temperatures that occur there allow the sperm to develop normally. |
| | E) | both c and d |
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15 | |
Men with sperm counts of fewer than __________ sperm per milliliter are considered sterile. |
| | A) | 600 million |
| | B) | 250 million |
| | C) | 100 million |
| | D) | 50 million |
| | E) | 20 million |
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16 | |
Progesterone is produced |
| | A) | only in postmenopausal women. |
| | B) | by the ovaries. |
| | C) | by the Fallopian tubes. |
| | D) | by the corpus luteum. |
| | E) | just after menstruation. |
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17 | |
A blastomere is |
| | A) | the first opening that occurs in a blastula. |
| | B) | a fluid-filled cavity. |
| | C) | a cell in a morula. |
| | D) | found in the mesoderm of the gastrula. |
| | E) | an invagination on the surface of the embryo. |
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18 | |
A blastocoel is |
| | A) | the first opening that occurs in a blastula. |
| | B) | a fluid-filled cavity. |
| | C) | a cell in a morula. |
| | D) | found in the mesoderm of the gastrula. |
| | E) | an invagination on the surface of the embryo. |
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19 | |
The miniature limbs of the embryo assume their adult shapes |
| | A) | at three weeks of development. |
| | B) | during the second month of development. |
| | C) | during the third month of development. |
| | D) | during the second trimester. |
| | E) | during the third trimester. |
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20 | |
Which of the following is the most effective form of birth control? |
| | A) | condom |
| | B) | birth-control pill |
| | C) | rhythm method |
| | D) | vasectomy |
| | E) | coitus interruptus |
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