Nerve cells of hydra differ from neurons of higher animals. In hydra, they conduct impulses in

All directions

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Definite directions

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Mesogloea only

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Gastrodermis only

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Solution

The correct option is A All directions
The nervous system of Hydra is a nerve net or network of neurons. They are apparently continuous with one another and conduct impulses in all directions. Nerve net connects sensory photoreceptors and touch-sensitive nerve cells which are located in the body wall and tentacles.
Therefore, the correct answer is option A.

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Which structure in a neuron helps to conduct a nerve impulses towards the cell body and away from the cell body

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