Which of the following options are correct??

Dear student,
The solution to your Q 27 has been provided below-

27.

Reflex arc

When we accidentally touch a hot object, we withdraw our hands immediately without thinking. If we do not do this, our hands will burn.

The sensory nerves detect the heat. They are connected to the nerves, which move the muscles of the hand. Such a connection of detecting the signal from the nerves (input), and responding to it immediately (output) is called a reflex arc.

A reflex arc makes instant and automatic responses possible. It connects the input nerve and output nerve and meets in a bundle in the spinal cord. In fact, nerves from all over the body meet in a bundle in the spinal cord, on their way to the brain. Therefore, the information input reaches the brain.

option D is correct as all the given functions in the options are correct.

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