Collectively, these studies indicate that there are three major clades of bilaterally symmetrical animals: the Deuterostomia, Lophotrochozoa, and Ecdysozoa (see Figure 32.11).
Collectively, these studies indicate that there are three major clades of bilaterally symmetrical animals: the Deuterostomia, Lophotrochozoa, and Ecdysozoa (see Figure 32.11).