1(e-iii)
Which of the following is not a natural reflex action?
- (a)Knee-jerk
- (b)Blinking of eyes due to strong light
- (c)Salivation at the sight of food
- (d)Sneezing when any irritant enters the nose
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Salivation at the sight of food
Reason — Salivation at the sight of food is a conditioned reflex as our brain already knows the taste of food.