Which stage in development occurs first?
A) cleavage
B) morula
C) gastrula
D) zygote
E) blastula
Correct Answer:
Verified
Q1: The process of cleavage initially produces a
A)
Q3: The nervous system develops primarily from
A) ectoderm.
B)
Q4: When does a zygote become a multicellular
Q5: How many days after fertilization does the
Q6: How many differentiated cell types exist in
Q7: The heart, muscles, bones, and blood develop
Q8: If an experimenter interferes with the mesoderm
Q9: The mesoderm is responsible for the formation
Q10: At the end of gastrulation, which of
Q11: In the following list of developmental events,
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