The circulatory system and the skeleton are ultimately formed by which embryonic layer of cells?
A) endoderm
B) mesoderm
C) ectoderm
D) trophoblast
Correct Answer:
Verified
Q21: The optimal time for implantation is _
Q22: A zygote is referred to as an
Q23: Which stage of prenatal development occurs during
Q24: Dana is seven weeks pregnant. In which
Q25: The outer layer of the cell mass
Q27: The endodermic layer eventually becomes the
A) respiratory
Q28: The formation of the placenta occurs during
Q29: A naturally occurring termination of a pregnancy
Q30: A general estimate is that _ of
Q31: What percentage of miscarriages occur even before
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents