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Question
Hydra is a coelenterate because it has
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Solution
The correct option is D Coelenteron and cnidoblast
Every coelenteron has coelenteron and cnidoblast. Hydra is a coelenterate as it follows the basic coelenterate radially symmetric body plan of two cell layers without a true body gut, having instead a gastrovascular cavity, with the mouth as a single opening. Hydra has nematocyst. Each nematocyst is contained inside a cnidoblast cell. Therefore, the correct answer is option C.
Every coelenteron has coelenteron and cnidoblast. Hydra is a coelenterate as it follows the basic coelenterate radially symmetric body plan of two cell layers without a true body gut, having instead a gastrovascular cavity, with the mouth as a single opening. Hydra has nematocyst. Each nematocyst is contained inside a cnidoblast cell.
Therefore, the correct answer is option C.
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