Which of the Following is NOT Characteristic of (Most) Deuterostomes

Question

Which of the following is NOT characteristic of (most) deuterostomes?
A) Radial cleavage
B) Determinate cleavage
C) Mouth develops from the blastopore
D) Develop pharyngeal slits at some point in their life cycle
E) Have a true coelom

Accepted Answer

Deuterostomes typically exhibit indeterminate cleavage, where each cell in the early stages of embryonic development retains the capacity to develop into a complete embryo. This is in contrast to determinate cleavage, where the fate of each cell is determined early on.