Which part of Hydra's body is more responsive and reacts to the stimulus instantaneously:
Correct answer: B. Tentacles
- A. Mouth
- B. Tentacles
- C. Enteron
- D. Whole body
Explanation
Hydra's tentacles contain sensory and nerve cells and are directly involved in detecting and responding to stimuli, especially contact with prey. The enteron is the digestive cavity, not the most responsive body region.
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