Question :
31.The time between conception and birth called the ________ period.
a.prenatalc.postnatal
b.neonatald.teratogenic
32.Which : 1245541
31.The time between conception and birth is called the ________ period.
a.prenatalc.postnatal
b.neonatald.teratogenic
32.Which of the following is the correct order of the stages of pregnancy?
a.period of the embryo, period of the fetus, period of the zygote
b.period of the zygote, period of the embryo, period of the fetus
c.period of the fetus, period of the zygote, period of the embryo
d.period of the embryo, period of the zygote, period of the fetus
33.Out of the 200–500 million sperm cells that are released during an ejaculation, only ________ complete the short journey up the Fallopian tubes to where an egg is waiting to be fertilized.
a.halfc.a few hundred
b.oned.a few thousand
34.Jeanette and her husband Eric have recently engaged in sexual intercourse. After this activity was completed, an egg in Jeanette’s Fallopian tube was fertilized by a sperm cell that was released by Eric. The result is a(n) ________, which marks the beginning of pregnancy.
a.zygotec.fetus
b.embryod.blastocyst
35.Despite the fact that a human female has a normal pregnancy duration (or gestational period) of 38 weeks, people often refer to pregnancy as a 40-week event. Why is this?
a.Because the heightened influence of teratogens in the world today has actually extended the duration of pregnancy from conception to delivery.
b.Because pregnancy usually begins two weeks after a woman’s menstrual period, and that is the time from which the beginning of pregnancy is measured.
c.Because the duration of pregnancy actually gets longer as a woman ages, and it ranges from 38 to 42 weeks. 40 weeks is the average, so that is what people say.
d.Because physicians want to allow for a two-week “window” at the end of the pregnancy so that women do not become concerned if they have not delivered by the end of the 38th week.
36.Which of the following structures eventually develops into a baby?
a.the amniotic sacc.the trophoblast
b.the germ discd.the blastocyst
37.Pregnant Patty’s body is currently experiencing the event that triggers hormonal changes that will prevent further menstruation. This event is called
a.implantation.c.dilation.
b.conception.d.effacement.
38.Lucy is currently expecting her first child, and she is talking to her friend Dale, who does not have any children of his own. Dale knows very little about human development, and asks Lucy how the food she eats gets to the developing child. Lucy smiles and shakes her head, before saying,
a.The uterus is responsible for doing all of that. Why do you think that is where the baby grows?
b.The germ disc separates me from the child, but has a small hole in it that allows vitamins and nutrients to get to the child.
c.The umbilicus is responsible for taking food out of my system and delivering it directly into the baby’s stomach.
d.There is a structure called the placenta that helps my body exchange nutrients and waste with the baby.
39.Once a zygote implants itself in the uterine lining, it officially becomes a(n) ________.
a.embryoc.fetus
b.babyd.germ disc
40.Brad and Angelina take their daughter Anniston to the zoo, and are looking at a bunch of different animals. Anniston, who has recently been learning about human development, sees a ________ and says, “Mommy, Daddy! That looks just like a human embryo in its third week of development!”
a.spiderc.aardvark
b.salamanderd.prairie dog
