Card 14 / 29: These invertebrates are aquatic, mostly marine, that vary widely in size, shape, and color. They have a canal system that allows for water movement through their body and their body has many pores and the canal is lined with flagellated cells (collar cells) that produce a current. What are they?
A)
coral
B)
sponges
C)
anemone
D)
jellyfish
Answer:
B) sponges
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