fertilization to birth Flashcards
(10 cards)
1
Q
during week ____ , the heart starts beating
A
4
2
Q
7 days after fertilization, a zygote ______ into the wall of the uterus, called the _____
A
- implants 2. endometrium
3
Q
at week 9, the baby is called a _____
A
fetus
4
Q
during the ____ stage of development, body fat rapidly increases
A
fetal
5
Q
_________ is the joining of egg and sperm
A
fertilization
6
Q
both sperm and egg should pass on ___ chromosomes
A
23
7
Q
female chromosomes are labeled ___
A
XX
8
Q
male chromosomes are labeled ___
A
XY
9
Q
during labor, the _____ contracts and pushes the baby against the cervix
A
uterus
10
Q
during the ________ stage of development, the lungs begin to form
A
embryonic
