Your interest in the evolution of early animals from non-animal ancestors means that you have done a lot of reading on choanoflagellates. When asked what the evidence is by your roommate which of the following would you state to explain that choanoflagellates are thought to be the closest living relatives to animals? A. They are simple multicellular organisms similar to simple animals.
B. Molecular comparisons between choanoflagellates and simple animals are similar.
C. They are similar to the cells of simple animals.
D. They have specialized functions as animal cells do.