Module 5A

Question 1

when does prenatal development begin

Answer 1

sperm successfully fertilizes an egg

Question 2

refers to the production or development of a mature egg from one of the thousands of oocyte to become a mature egg

Answer 2

oogenesise

Question 3

ova are viable and can be fertilized how many hours after ovulation

Answer 3

24

Question 4

the maturation of the immature sperms inside the testes

Answer 4

spermatogenesis

Question 5

how long are sperms viable for

Answer 5

72 hours

Question 6

sperms have the maximum fertilizing capacity for

Answer 6

24 HOURS

Question 7

how long does it take for sperm and egg to meet

Answer 7

15 minutes to 3 days

Question 8

the capsule that surrounds the egg where sperm penetrates

Answer 8

zona pellucida

Question 9

it starts when a millions of sperms are ejaculated into the vagina during intercoura se

Answer 9

fertilization

Question 10

when sperms and eggs merge it becomes?

Answer 10

a zygote

Question 11

identical twins are also called what

Answer 11

monozygituc twins

Question 12

• embryo splits into two during early stages of development
• one egg is fertilized by one sperm
• identical genes and be of the same sex

Answer 12

monozygotic twins

Question 13

• two different eggs are ovulated by a sperm cell
• no more genetically similar than any other sibling

Answer 13

dizygotic twins

Question 14

another word for fraternal twins

Answer 14

dizygotic twins

Question 15

have a shared placenta

Answer 15

monozygotic twins

Question 16

have separate placentas

Answer 16

dizygotic twins

Question 17

occurs when mitotic division is incomplete

Answer 17

conjoined twins

Question 18

how long does embryo become implanted into the uterus

Answer 18

a week

Question 19

a temporary disc-shaped organ that connect the fetus to the uterine wall

Answer 19

placenta

Question 20

life support system for developing fetus

Answer 20

placenta

Question 21

the connecting link between the fetus and the placenta

Answer 21

cord

Question 22

4th-8th week of development is what

Answer 22

embryo

Question 23

during the period body parts are formed

Answer 23

embryo

Question 24

from 9 weeks after conception to birth

Answer 24

fetus

Question 25

increases in size and systems beings to function

Answer 25

fetus

Question 26

fetus rests in a pale straw-colored liquid called the

Answer 26

amnion

Question 27

amnion is filled with what

Answer 27

amniotic fluid

Question 28

how big is the embryo the first month

Answer 28

1/10 of an inch long