Which of the following stages of embryonic development consists of only two layers of cells?
A) morula
B) blastula
C) early gastrula
D) late gastrula
Correct Answer:
Verified
Q8: The neural tube of vertebrates develops during
Q11: A series of events occur during fertilization.Place
Q12: During the formation of an embryo,the hollow
Q13: Development of the neural system is characterized
Q14: Identify and briefly describe the labeled stages
Q15: Which structure is NOT associated with the
Q17: What statement about homeotic genes,as it relates
Q18: The proper order of embryonic development is
A)cleavage-morula-blastula-gastrula.
B)morula-cleavage-blastula-gastrula.
C)blastula-cleavage-morula-gastrula.
D)gastrula-cleavage-blastula-morula.
Q20: Morphogenesis is characterized by
A)cell division and growth
Q21: A healthy fetus born at twenty-four weeks
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