The Following Eight Questions Refer to Figure 32

Multiple Choice

The following eight questions refer to Figure 32.2A (morphological) and Figure 32.2B (molecular) phylogenetic trees of the animal kingdom.

Figure 32.2A: Morphological Phylogeny

Figure 32.2B: Molecular Phylogeny
-In the traditional phylogeny (Fig. 32.2A) , the sponges are considered to be a clade, whereas in the molecular phylogeny (Fig. 32.2B) , sponges

A) do not all have a common ancestor that is unique only to them.
B) are polyphyletic.
C) called the Calcarea should actually be included among the eumetazoa.
D) called the Silicea are the sole organisms that should be properly called "sponges."
E) called the Calcarea diverged from the lineage that eventually produced the eumetazoa earlier than did the Silicea.