Examine Figure 44.7 below, paying attention to the phylogenetic position of sponges in the two phylogenies presented. If the hypothesis represented by the tree on the right is correct, as some molecular evidence suggests, which of the following can you conclude? 
A) sponges are monophyletic.
B) sponges are paraphyletic.
C) the common ancestor of all animals was spongelike in appearance.
D) we don't know what the common ancestor of all animals looked like.
E) None of the answer options is correct.
Correct Answer:
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A)reproduce.
B)access nutrients.
C)form a protective
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Q57: Which of the following traits, if found
Q58: Sponges move huge volumes of water through
Q59: Sponge cells capture nutrients in the form
Q60: If, as some molecular data suggest, comb-jellies
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