One of the Hypotheses for the Relationship of Sponges to All

question 100

Multiple Choice

One of the hypotheses for the relationship of sponges to all other animals shows the sponges as paraphyletic. What would this suggest about the evolution of sponges?

• A)Sponges are actually more diverse than we previously thought.
• B)The ancestor of sponges gave rise to a minimum of two lineages, one of which was the ancestor of sponges sister to all other animals.
• C)Only certain types of sponges are capable of evolution.
• D)Sponges that are sister to all other animals must have more cell types than other sponges.

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