The two largest clades in the Bilateria are the protostomes and the deuterostomes.Group startsTrue or False

This statement is True.

In the classification of animals, Bilaterians are divided into two primary groups based on their embryonic development: protostomes and deuterostomes.

1. Protostomes: In these organisms, the mouth develops from the blastopore (the first opening that forms during embryonic development). This group includes mollusks, annelids, and arthropods.

2. Deuterostomes: In contrast, in deuterostomes, the anus develops from the blastopore, while the mouth forms later. This group encompasses echinoderms (like starfish) and chordates (including vertebrates).

These two clades represent the largest evolutionary branches within the Bilateria, making the statement accurate.