Question

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

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