Question

How many openings does the digestive system of a cnidarian have?

Answer 1

Digestion is both extracellular and intracellular in an cnidarian.The food is captured by the tentacles and directed to the gastro-vascular cavity of body.First,the digestion takes place in the cavity (extracellular)

And then inside the food vacuole (intracellular). Gastro-vascular cavity is branched and opens to the exterior by mouth.

Answer 2

Digestion is both extracellular and intracellular in an cnidarian.The food is captured by the tentacles and directed to the gastro-vascular cavity of body.First,the digestion takes place in the cavity (extracellular)

And then inside the food vacuole (intracellular). Gastro-vascular cavity is branched and opens to the exterior by mouth.