Response to stimulus

Q.

Question 3 (e)

Fill up the blank.
Changes in our surroundings that make us respond to them, are called ___.

Q. Which of the following is not an example of response to stimulus?

1. Watering in mouth when we see delicious food items.
2. Closing of leaves of mimosa plant when touched.
3. Shutting our eyes when an object is suddenly thrown in our direction.
4. A chick hatching out of an egg.

Q.

If an insect sits on the open mouth of the pitcher plant, the flap of the mouth closes shut. The response of pitcher plant is a result of a change, which occurred in the surroundings of the pitcher plant, known as -

1. heating

2. stimulus

3. adaptation

4. acclimatisation

Q. Leaves of mimosa plants shrink in response to touch.

1. True
2. False

Q.

If an insect goes and sits on the open mouth of the pitcher plant, the flap of the mouth closes. This response of pitcher plant is the result of a change which occurred in the surroundings of the pitcher plant which is also known as -

1. adaptation

2. acclimatisation

3. heating

4. stimulus

Q.

Which of the following is not a response to a stimulus?

1. A bird flying in the sky

2. A mimosa plant closing its leaves

3. Withdrawing the hand on touching a hot object

4. A plant growing towards sunlight

Q.

If an insect sits on the open mouth of the pitcher plant, the flap of the mouth closes shut. This response of pitcher plant is the result of a change which occurred in the surroundings of the pitcher plant which is also known as -

1. acclimatisation

2. heating

3. adaptation

4. stimulus

Q.

All living organisms respond to stimuli.

1. True

2. False

Q. Which of the following is not a response to light?

1. Closing of plant leaves due to a sudden flash of light.
2. Mimosa plant closing it's leaves when we touch it.
3. A potted plant growing towards sunlight.
4. Gathering of insects around a glowing street lamp.