A) blastocoels
B) coelom
C) spongocoel
D) gastrovascular cavity
Correct Answer: C
Solution :
Certain cells lining the gastrovascular cavity secrete enzyme into the cavity where the food is party digested. Fragments of the partially digested food are taken up into food vacuules by other cells lining the cavity. The products of the digestion are also distributed to the body ceils by the cavity.
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