1.

How Ingestion of food occurs in Hydra:(a) Cell membrane (b) Tentacles (c) Mouth (d) Nucleus

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Answer:

HYDRA captures their FOOD by paralyzing and killing the food organism by means of nematocysts, which are discharged into the prey. The prey is brought to the MOUTH (proctostome) by the tentacles, a response that is induced glutathione. ... The organism is then TAKEN in through the mouth, which is star-shaped or CIRCULAR.



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