Choose the best answer

1		A fertilized egg is called a(n)
			A)	blastocyst
			B)	oocyte
			C)	ovum
			D)	zygote
2		Which hormone is only produced following implantation?
			A)	FSH
			B)	HCG
			C)	LH
			D)	Estrogen
3		Fertilization occurs in the
			A)	uterus.
			B)	uterine tube (oviduct).
			C)	vagina.
			D)	abdominal cavity.
4		The elastic envelope surrounding an egg that only lets one sperm penetrate the egg is called the
			A)	corona radiata
			B)	endometrium
			C)	trophoblast
			D)	zona pellucida
5		Embryonic development occurs during the _________ of pregnancy.
			A)	first week
			B)	second through eighth weeks
			C)	third through ninth weeks
			D)	third through ninth months
6		Which extraembryonic membrane encloses the fluid environment in which the embryo and fetus develops?
			A)	allantois
			B)	amnion
			C)	chorion
			D)	yolk sac
7		Which extraembryonic membrane becomes a part of the placenta?
			A)	allantois
			B)	amnion
			C)	chorion
			D)	yolk sac
8		Which extraembryonic membrane is the first site for the production of red blood cells?
			A)	allantois
			B)	amnion
			C)	chorion
			D)	yolk sac
9		What produces HCG?
			A)	ovary
			B)	fetus (after third month)
			C)	placenta
			D)	uterus
10		Implantation normally occurs around the _______ following fertilization?
			A)	first day
			B)	second day
			C)	seventh day
			D)	fourteenth day
11		What attaches to the uterus during implantation?
			A)	blastocyst
			B)	embryo
			C)	morula
			D)	zygote
12		The compact ball of embryonic cells that develops into a morula is called a blastocyst.
			A)	True
			B)	False
13		The cervix dilates during the second stage of parturition.
			A)	True
			B)	False
14		Which hormone continues to be produced during pregnancy, thus not allowing menstruation to occur.
			A)	progesterone
			B)	FSH
			C)	oxytocin
			D)	testosterone
15		Fraternal twins come from two different eggs fertilized by one sperm.
			A)	True
			B)	False
16		The skeleton, muscular system, dermis of the skin, and urinary and reproductive systems arise from which primary germ layer?
			A)	ectoderm
			B)	mesoderm
			C)	endoderm
			D)	epithelium
17		The digestive system, lungs, and kidneys are functioning by week nine.
			A)	True
			B)	False
18		Stage three includes the delivery of the placenta or afterbirth.
			A)	True
			B)	False