Which of the following can be cited as evidence for the bilaterians as a clade?

Question

Quizplus · Accepted Answer

Bilateral symmetry is the key characteristic that defines bilaterians as a clade. This symmetry is defined by the presence of a distinct left and right side, as well as a head region and tail region. Bilateral symmetry is found in all major groups of bilaterians, including protostomes and deuterostomes. The other options listed either do not apply to all bilaterians or represent characteristics found in other groups of animals as well.

Which of the Following Can Be Cited as Evidence for the Bilaterians