Question

In figure 33.2 in your textbook, which two main clades branch from the most recent common ancestor of the eumetazoans?

Answer 1

The two main clades branch from the most recent ancestor is called Cnidaria and Bilateria. Please have in mind that Cnidaria is a phylum containing 10.000 species of animals. Now on the other hand, Bilateria is a major group of animals. After looing at the figure 33.2 we can conclude that these two are part of the ancestor of the eumetazoans which is a clade comprising all major animals.