slide 22 Flashcards
1
Q
___ layers of developmental cells arise early in the first trimester of pregnancy
A
3
2
Q
Each of the three primary germ layers gives rise to
A
specific organs and systems of the body
3
Q
endoderm
A
inside layer
4
Q
ectoderm
A
outside layer
5
Q
mesoderm
A
middle layer
