Which of the following is not an example of the response to stimulus? (a) Watering in the mouth when we see delicious food items. (b) Closing of leaves of Mimosa plant when touched. (c) Shutting our eyes when an object is suddenly thrown in our direction. (d) A chick hatching out of an egg.

d) A chick hatching out of an egg

Explanation

Watering in the mouth at the sight of delicious food, Closing of Mimosa leaves when touched, Shutting our eyes when an object is suddenly thrown at us are all responses to stimuli.The hatching of a chick out of the egg is reproduction.The changes in the environmental conditions to which the organisms respond are known as stimuli. Every living organism responds when an external stimulus acts on it. When various organs work together in a systematic manner to produce a response to the stimulus, it is called coordination.

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