At which developmental stage should one be able to first distinguish a protostome embryo from a deuterostome embryo?

At which developmental stage should one be able to first distinguish a protostome embryo from a deuterostome embryo? 





A) fertilization
B) cleavage
C) gastrulation
D) coelom formation
E) metamorphosis






Answer: B


Learn More :

Biology

Learn More Multiple Choice Question :