Which of the following is NOT a characteristic of the sponges?
A. Sponges have an osculum, an opening in the upper body.
B. Sponges can reproduce sexually or asexually.
C. Sponges have three tissue layers.
D. If the cells of a sponge are mechanically separated, they will spontaneously reassemble into a complete and functioning sponge.
E. Sponges are filter feeders.
Answer: C
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