Which of the following sequences is correct for the development of a vertebrae? (HELP BIOLOGY EXAM SOON!!)?

a. fertilization, cleavage, gastrula, zygote, blastula

b. fertilization, zygote, cleavage, blastula, gastrula

c. zygote, blastula, cleavage, gastrula, fertilization

d. cleavage, blastula, fertilization, zygote, gastrula

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  • Anonymous
    1 month ago
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    B - just remember 'gastro' is the root for stomach - so that stage comes late in embryonic dev - the in-puckering of the blastula is called gastrulation.. A zygote is a fertilized egg (one cell). Cleavage is cell division.

    • Justn1 month agoReport

      Thanks, very informative!

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