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

1 Answer

  • Anonymous
    1 month ago
    Favorite Answer

    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!

    • Login to reply the answers
Still have questions? Get your answers by asking now.