Question

has/have no role.
3. In reflex actions, the
a. brain
b. nerves
4. In dim light the size of the nunil
d. muscles
C. spinal cord​

Answer 1

Explanation:

The sensory nerve that detects the heat is connected to the nerves that move the muscles of the hand. Such a connection of detecting the signal from the nerve and responding to it quickly is known as a reflex arc.

Reflex arcs are formed in the spinal cord and the information reaches the brain and brain responses to it.

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