Question 3 (e)
Fill up the blank.
Changes in our surroundings that make us respond to them, are called
Changes in our surroundings that make us respond to them are called stimuli.
Every living thing responds to stimuli. For example, a cockroach running away from light. Here light is the stimulus. In some plants like Mimosa plant, commonly known as ‘touch-me-not’ plant, close their leaves when touched. Here touch is the stimulus.