What is the probable sequence in which the following clades of animals originated, from earliest to most recent?
1)tetrapods
2)vertebrates
3)deuterostomes
4)amniotes
5)bilaterians
A) 5 → 3 → 2 → 4 → 1
B) 5 → 3 → 2 → 1 → 4
C) 5 → 3 → 4 → 2 → 1
D) 3 → 5 → 4 → 2 → 1
E) 3 → 5 → 2 → 1 → 4

Question

Quizplus · Accepted Answer

The correct sequence from earliest to most recent based on evolutionary history is: Bilaterians (the earliest animals with bilateral symmetry), Deuterostomes (a group within the bilaterians that includes vertebrates, echinoderms, and others), Vertebrates (animals with backbones), Tetrapods (vertebrates with four limbs), and Amniotes (tetrapods with an amniotic egg). This sequence reflects the broad pattern of animal evolution from simple to more complex body plans and adaptations.

What Is the Probable Sequence in Which the Following Clades