Biology: The Dynamics of Life, North Carolina Edition

Chapter 38: Reproduction and Development

Reproduction and Development

1
Which of these is NOT a change that most human adults experience as they age?
A)Metabolism becomes much faster.
B)Less pigment is produced in hair follicles.
C)Some of the skin's elasticity is lost.
D)Disks between the vertebrae in the spine compress.
2
The scar left from cutting a human baby's umbilical cord is called __________.
A)the navel
B)the cervix
C)the chorionic villi
D)the birth canal
3
__________ occurs when an egg ruptures through a human female's ovary wall.
A)Ovulation
B)Puberty
C)Ejaculation
D)Meiosis
4
__________ is the hormone responsible for the expression of secondary sex characteristics in human females.
A)FSH
B)Testosterone
C)LH
D)Estrogen
5
Which part of the male reproductive system is the place where sperm complete the maturation process?
A)the penis
B)the prostate gland
C)the epididymis
D)the vas deferens
6
Which of these is NOT a stage of human birth?
A)placental stage
B)dilation stage
C)implantation stage
D)expulsion stage
7
Which of these hormones stimulates uterine contractions during labor?
A)testosterone
B)estrogen
C)oxytocin
D)thyroxin
8
In which part of the female reproductive anatomy does a fetus develop?
A)the ovary
B)the vagina
C)the uterus
D)the cervix
9
Which of these is NOT a gland that contributes to the production of sperm?
A)prostate gland
B)thyroid gland
C)seminal vesicles
D)bulbourethral gland
10
At what point in development does an embryo become a fetus?
A)by the twenty-eighth week
B)by the thirty-ninth week
C)by the eighth week
D)by the nineteenth week
11
After a baby is born, __________ is the first stage of human growth.
A)adolescence
B)childhood
C)puberty
D)infancy
12
__________ keeps the embryo attached to the wall of the uterus.
A)The umbilical cord
B)The vagina
C)The blastula
D)The fallopian tube
13
Which of these vitamins has been found to reduce the incidence of neural tube defects in human babies?
A)vitamin C
B)folic acid
C)vitamin K
D)pantothenic acid
14
Which of these is the name for human embryonic development?
A)a navel
B)a contraction
C)a placenta
D)a blastocyst
15
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This chart shows the growth rate of a fetus. During which period is the fetus' growth the greatest?
A)from 3 weeks to 6 weeks
B)from 7 months to 9 months
C)from 8 weeks to 3 months
D)from 4 months to 6 months
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