What do all deuterostomes have in common?
A) Adults are bilaterally symmetrical.
B) Embryos have pharyngeal pouches that may or may not form gill slits.
C) All have a spinal column.
D) The pore (blastopore) formed during gastrulation becomes the anus.

Question

Quizplus · Accepted Answer

All deuterostomes have a developmental process in which the blastopore (the first opening in the developing embryo) becomes the anus. This is in contrast to protostomes, where the blastopore becomes the mouth.

What Do All Deuterostomes Have in Common