Multiple Choice
A failure of the cells in the ectoderm to differentiate correctly would most affect which of the following body systems?
A) epidermis of the skin
B) cardiovascular system
C) urinary system
D) digestive system
E) endocrine system
Correct Answer:

Verified
Correct Answer:
Verified
Q43: Which of the following determines the relationship
Q44: During pregnancy, maternal and fetal blood mix
Q45: The allantois<br>A) becomes the umbilical blood vessels
Q46: Which of the following structures is responsible
Q47: Morphogenesis is<br>A) the total life cycle of
Q49: Which of the following is an advantage
Q50: The sex of the fetus can be
Q51: Which statement is true about homeotic genes?<br>A)
Q52: Free radicals cause aging because<br>A) they collect
Q53: The statement "a child is more closely