[Campbell Biology P.732] According to the phylogenetic tree in Figure 32.11, approximately h... | Practice Question

According to the phylogenetic tree in Figure 32.11, approximately how many million years ago did the clade Eumetazoa diverge from its common ancestor?

  • A: 770 million years ago
  • B: 680 million years ago
  • C: 670 million years ago
  • D: The tree does not provide this specific information.

Explanation

Figure 32.11 explicitly indicates that the Eumetazoa clade diverged approximately 680 million years ago, as shown by the label directly associated with its branching point on the tree.