Select the correct sequence of animal developmental
events.
a. fertilization >>> cleavage >>> gastrula >>>
blastula
b. fertilization >>> cleavage >>> blastula >>>
gastrula
c. fertilization >>> blastula >>> cleavage >>>
gastrula
d. fertilization >>> gastrula >>> blastula >>>
cleavage
e. fertilization >>> blastula >>> gastrula >>>
cleavage
Answer: b
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