Question

What are reflex actions?give two examples. explain a reflex arc.

Answer 1

ANSWER____✒️
Reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.

#️⃣MARK BRAINLIEST✓✓

Answer 2

Answer:

Reflex action is a rapid, automatic response to a stimulus which is not under the voluntary control of the brain i.e., it is an involuntary action.

Example: (i) If we unknowingly touch a hot plate, we immediately move our hand away from it. (ii)Salivation of mouth at the sight or smell of our favorite food.

The pathway taken by nerve impulse in a reflex action is called the reflex arc.Reflex arcs have evolved in animals because the thinking process of brain is not fast enough.