Response to Stimulus

Q.

Is The Sentence Correct- My Mother Cooks Food In The Kitchen

Q.

___ system controls and coordinates the activities of all the systems in our body.

Q.

What is the structural and functional unit of the nervous system? Name it any two components?

Q. Why does a plant bend towards sunlight ?

1. To prepare food
2. To respire
3. To absorb water
4. To absorb food

Q.

Which of the following are parts of Peripheral Nervous System (PNS)?

1. Cranial nerves

2. Spinal nerves

3. Brain

4. Spinal cord

Q.

Explain how messages reach the brain.

Q. Which of the following can be a stimulus?

1. Light
2. Water
3. Touch
4. All of these

Q.

What does central nervous system consists of?

Q.

The factors like food, water, light, and temperature to which organisms respond.

Q.

All living organisms respond to stimuli.

1. True

2. False

Q.

Match the following:

$\begin{array}{cc}\text{A}& \text{B}\\ \text{(1) Growth of sunflower towards a light source}& \text{(i) Chemotropism}\\ \text{(2) Growth of tree roots towards earth}& \text{(ii) Hydrotropism}\\ \text{(3) Growth of plant roots towards or away from moisture}& \text{(iii) Phototropism}\\ \text{(4) Growth of a plant part in response to a chemical stimulus}& \text{(iv) Geotropism}\end{array}$​

1. 1 - ii, 2 - iii, 3 - iv, 4 - i

2. 1 - iv, 2 - i, 3 - ii, 4 - iii

3. 1 - iv, 2 - iii, 3 - i, 4 - ii

4. 1 - iii, 2 - iv, 3 - ii, 4 - i

Q.

Central nervous system comprises of?

1. Brain

2. Spinal cord

3. All peripheral nerves

4. Brain and spinal cord

Q.

If an insect goes and 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. stimulus

3. adaptation

4. heating

Q.

Describe the system of brain in brief

Q.

Match the following characteristics of living organisms with the details.

$\begin{array}{cc}\text{Characteristics}& \text{Details}\\ 1.\text{Response to stimuli}& \text{a) Giving rise to another organism of the same kind}\\ 2.\text{Reproduction}& \text{b) Reaction to sensations like touch, light, heat, cold and sound}\\ 3.\text{Adaptation}& \text{c) The event at which an organism ceases to live}\\ 4.\text{Death}& \text{d) Ability of an organism to adjust to the current environment}\end{array}$

1. 1 - b, 2 - a, 3 - c, 4 - d

2. None of these

3. 1 - b, 2 - a, 3 - d, 4 - c

4. 1 - a, 2 - b, 3 - d, 4 - c

Q.

Identify The Feminine Form Of The Noun Host.

Q.

Central nervous system comprises of?

1. Brain and spinal cord

2. All peripheral nerves

3. Brain

4. Spinal cord