Closing both the eyes when a torch light is flashed on one eye is a part of

Reflex action

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Chemotropism

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Hormonal control

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None of these

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Solution

The correct option is A Reflex action
The best-known reflex is the pupillary light reflex. If a light is flashed near one eye, the pupils of both eyes contract.
Light is the stimulus, impulses reach the brain via the optic nerve, and the response is conveyed to the pupillary musculature by autonomic nerves.

Therefore, the correct answer is option A.

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