29.1 Fertilization and the Preembryonic Stage

1			What actually implants into the uterine endometrium?
			A)	zygote
			B)	2 cell blastomere
			C)	4 cell blastomere
			D)	morula
			E)	blastocyst
2			The sperm undergo a process of capacitation that
			A)	requires about 10 hours to complete.
			B)	requires the removal of cholesterol from the sperm membrane.
			C)	enables the sperm to penetrate the egg.
			D)	All of the above.

29.2 The Embryonic and Fetal Stages

3			This structure eventually becomes part of the urinary bladder.
			A)	the placenta
			B)	the allantois
			C)	the chorion
			D)	the yolk sac
4			In human development, all organs systems are present and definable
			A)	a few days after fertilization.
			B)	at the morula stage.
			C)	at the blastocyst stage.
			D)	at the end of the embryonic stage.
5			Which of the following is not an embryonic membrane?
			A)	amnion
			B)	chorion
			C)	yolk sac
			D)	umbilicus

29.3 The Neonate

6			A genetic anomaly with an XO combination results in ________________.
			A)	Turner syndrome
			B)	Klinefelter syndrome
			C)	Down syndrome
			D)	triple X syndrome
7			A short person having one palmer crease, a protruding tongue, and mental retardation may have this aneuploidy.
			A)	XXY
			B)	XYY
			C)	trisomy 18
			D)	trisomy 21

29.4 Aging and Senescence

8			Which organ system ages the slowest?
			A)	respiratory
			B)	integumentary
			C)	endocrine
			D)	nervous
9			The kidneys of a 90 year old will be what percent smaller than those of a 30 year old?
			A)	10 to 20%
			B)	20 to 30%
			C)	20 to 40%
			D)	80 to 90%
10			Presbyopia begins at about what age?
			A)	shortly after adolescence
			B)	20s
			C)	30s
			D)	40s