Things around us Worksheet-1

Things around us Worksheet-1

Multiple-Choice Questions:

1. Living things

(A) Grow and reproduce

(B) Respond to stimuli and respire

(C) Excrete wastes from the body and need food

(D) All of these

2. A biotic components include

(A) Air, water, and plants               (B) Plants, animals, and soil

(C) Air, water, and soil                    (D) Soil, plants, and water

3. The layers of the soil from top to bottom are

(A) Topsoil, subsoil, parent material, bedrock

(B) Topsoil, parent material, subsoil, bedrock

(C) Bedrock, parent material, subsoil, topsoil

(D) Topsoil, bedrock, subsoil, parent material

4. All animals fall in the category of

(A) Heterotrophs                             (B) Autotrophs

(C) Decomposers                             (D) Primary consumers

5. The movement of leaves, roots, etc., of a plant in response to external stimuli such as light and gravity is called ____.

(A) Response       (B) Tropism         (C) Stimulus

6. Plants excrete solid wastes in the form of ____.

(A) Faeces                                         (B) Urine             

(C) Carbon dioxide                          (D) Latex

True/False:

7. A group of similar cells that perform a particular function form an organ.
8. Human beings and a rose plant are example for multicellular organism.
9. Different processes that help an organism to stay alive is called a Life Process.
10. A change in the immediate change in reaction of an organism, which produces a change in the activities of the organism, is called a stimulus.
11. Plants get rid of wastes in the form of gum, resins, latex, etc.
12. Plants respire only during the day time.
13. Animals reproduce by either laying eggs or giving birth to young ones.
14. Green plants manufacture their own food, so they are said to be heterotrophs.
15. All living things follow a cycle of growth and development, by which an organism takes birth, grows into an adult, grows old, and dies.
16. Non-living things do not grow or die.
17. Plants, animals, scavengers, and decomposers are abiotic components.

Answer Key:

1. (D)
2. (C)
3. (A)
4. (A)
5. (B)
6. (D)
7. False

Exp:  A group of similar cells that perform a particular function form a tissue.

8. True
9. True
10. False

Exp:  A change in the immediate environment of an organism, which produces a change in the activities of the organism, is called a stimulus.

11. True
12. False

Exp:  Plants respire all the time.

13. True
14. False

Exp:  Green plants manufacture their own food, so they are said to be autotrophs.

15. True
16. True
17. False

Exp:  Plants, animals, scavengers, and decomposers are biotic components.