Choose the best answer.

1			Another term for pregnancy is _________.
			A)	conception
			B)	gestation
			C)	parturition
			D)	lactation
2			Which one of the following processes does NOT occur during the preembryonic stage?
			A)	Cleavage
			B)	Implantation
			C)	Organogenesis
			D)	Embryogenesis
3			At which stage does the preembryo implant in the uterus?
			A)	Zygote
			B)	Morula
			C)	Blastocyst
			D)	Embryo
4			What is the name for the fine hair that covers a 20 week old fetus?
			A)	Meconium
			B)	Lanugo
			C)	Vernix caseosa
			D)	Digital rays
5			The production of sperm and egg is called __________?
			A)	Sexogenesis
			B)	Gametogenesis
			C)	Capacitation
			D)	Diploidgenesis
6			The chromosomal number of 23 in the sperm and egg cells is called the __________ number.
			A)	diploid
			B)	acrosomal
			C)	haploid
			D)	polygametal
7			A special form of cell division is used to form the sperm and egg cells. What is it called?
			A)	Capacitation
			B)	Meiosis
			C)	Polyosis
			D)	Mitosis
8			Normal fertilization occurs within the __________________.
			A)	vagina
			B)	uterus
			C)	upper uterine tube
			D)	peritoneal cavity
9			The anterior tip of the mature sperm contains a specialized lysosome area called the __________________________.
			A)	acrosome
			B)	amphimixis
			C)	cortical granules
			D)	capacitant
10			Normal fertilization requires one egg and _______________ sperm.
			A)	1
			B)	2
			C)	4
			D)	16
			E)	100 or more
11			When a sperm fertilizes an egg there is an immediate formation of a __________________.
			A)	amphimixis
			B)	fertilization membrane
			C)	acrosome
			D)	zona defensitile
12			During meiosis the egg cell gets all of the ______________ and the polar body gets very little.
			A)	acrosome
			B)	water
			C)	cytoplasm
			D)	polyspermy
13			The average human gestation or pregnancy lasts ______________ days.
			A)	3
			B)	28
			C)	266
			D)	365
14			Which is NOT a developmental stage prior to birth?
			A)	Preembryonic
			B)	Fetal
			C)	Conceptus
			D)	Embryonic
15			What is the layer of squamous cells of the wall of the blastocyst called? This layer will form part of the placenta and nourish the embryo later.
			A)	Trophoblast
			B)	Embryoblast
			C)	Blastocoel
			D)	Fetalblast
16			The attachment of the conceptus to the wall of the uterus is called ____________?
			A)	Gastrulation
			B)	Implantation
			C)	Organogenesis
			D)	Syncyation
17			Which is NOT a germ layer of the embryo?
			A)	Ectoderm
			B)	Endoderm
			C)	Gastroderm
			D)	Mesoderm
18			When all three germ layers have formed the conceptus is now called a/n ______________________.
			A)	ovum
			B)	fetus
			C)	blastocysis
			D)	embryo
19			Between three and four weeks of gestation, the closing of the neural tube is called ____________?
			A)	Neurulation
			B)	Pharyngeal pouch formation
			C)	Notochord formation
			D)	Endodermal roll-over
20			Which is NOT an embryonic membrane?
			A)	Amnion
			B)	Yolk sac
			C)	Chorion
			D)	Somation
			E)	Allantois
21			The normal balance of amniotic fluid is kept in balance by the fetal ___________ and ___________ .
			A)	blood production and blood reabsorption
			B)	kidney’s and swallowing of the fluid
			C)	lungs and nervous system reabsorption
			D)	salivary gland and liver reabsorption
22			The fetus is connected to the placenta by way of the ____________________ .
			A)	yolk sac
			B)	embryonic disc
			C)	placental sinus
			D)	umbilical cord
23			Most of the size growth or weight gain of the baby occurs during the ____________________.
			A)	first two weeks
			B)	time through the end of the embryo period
			C)	middle trimester
			D)	third trimester
24			At the end of eight to ten weeks the conceptus is now called a/n _____________________.
			A)	embryo
			B)	blastocysis
			C)	morula
			D)	fetus