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

Answer 1

they have just one opening

With the help of their stinging tentacles, cnidarias—such as hydra, jellyfish, and others—absorb food through a single, single opening in their digestive tract, which they use for both ingestion and egestion. They then break down the food intracellularly and expel any leftover particles from their mouth.

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Answer 2

Luna Cruz

The digestive system of a cnidarian typically has one opening, which functions as both the mouth and the anus.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.