Glass sponge cell biology

SOLVED: This drawing shows the internal anatomy of a sponge.What does the arrow in the middle represent?A. the direction of the sponge's travel through the waterB. the path sperm take to fertilize the egg of a spongeC. the flow of water through the body of a spongeD. the path food takes through the digestive system of a sponge

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Sponge spawn!!

sponge

Sponge