Chapter 3
Variation in Shelters
Highlights
- A. Tick the correct option
- B. Fill in the blanks
- C. Match the following
- D. Correct the following sentences
- E. Answers the following questions
EXERCISE
A. Tick the Correct Option
- 1. The number of Bhimbetka rock shelters is-
Answer: vacuole
- 2. Bamboo and wooden houses are found in-
Answer: vacuole
- 3. The earliest form of shelter for man were-
Answer: vacuole
- 4. Flat roof houses are found in regions of-
Answer: vacuole
- 5. The volume of radio/television at night should be kept-
Answer: vacuole
B. Fill in the blanks.
- 1. We live in society because we are ___________ on others for fulfillment of our needs.
- 2. Houses in hilly areas have ___________ roofs.
- 3. Stilt houses protect the ___________ from wild animals.
- 4. You can organise ___________ pool with neighbours.
- 5. In cities, flats are common because of ___________ land and many people.
C. Match the following :
- Column A
- 1. Golgi Complex
- 2. Ribosomes
- 3. Chromosomes
- 4. Dead cells
- 5. Photosynthesis
- Column B
- (a) genes
- (b) cork
- (c) chloroplasts
- (d) packaging center
- (e) protein synthesis
C. State whether True or False:
- 1. Huts were the earliest form of man-made shelter.
Answer: Sharing of chores reduces the burden.
- 2. Bhimbetka rock shelters are 9000 years old.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. The houses in the hilly areas have flat roof.
Answer: There is more interaction between parents and children in nuclear families.
- 4. We must never help our neighbours in case of emergency.
Answer: A surname is a family name.
- 5. Most people do not hesitate to throw garbage on street.
Answer: A surname is a family name.
D. Answer briefly:
- 1. What was the earliest form of shelter?
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. What are the walls of huts made of in villages?
Answer: Distinguish between unicellular and multicellular organisms are
Unicellular organisms are made up of a single cell. e.g., Euglena and Amoeba.
Multicellular organisms are made up of many cells. e.g., Humans and Birds.
- 3. Why are some houses built with thick walls and flat roofs?
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 4. Give two advantages of high-rise apartments.
Answer: Mitochondria is known as the Powerhouse of the cell.
Mitochondria are the site of cellular respiration. Energy is produced during this process. Due to this, mitochondria are called the Powerhouse of the cell.
- 5. What is the advantage of Neighbourhood Watch Plan?
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
E. Answer the following questions:
- 1. What information do we get from Bhimbetka rock shelters?
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 2. List the changes that occurred in the life of man when he became a food producer.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 3. Give three reasons for regional variation in houses.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 4. What are the responsibilities of a good neighbour?
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 5. Complete the table below:
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
Related Topics
- Chapter 1 The Cell – Its Structure and Functions
- Chapter 2 Microorganisms: Friends or Foes
- Chapter 3 Metals and Non-Metals
- Chapter 4 Force and Pressure
- Chapter 5 Friction
- Chapter 6 Sources of Energy
- Chapter 7 Combustion
- Chapter 8 Conservation of Plants and Animals
- Chapter 9 Crop Production and Its Management
- Chapter 10 Refraction and Dispersion of Light
- Chapter 11 The Human Eye
- Chapter 12 Sound
- Chapter 13 Synthetic Fibres and Plastics
- Chapter 14 Reproduction in Animals
- Chapter 15 Reaching the Age of Adolescence
- Chapter 16 Electric Current and Its Chemical Effects
- Chapter 17 Stars and Solar System
- Chapter 18 Earthquakes
- Chapter 19 Pollution of Air
- Chapter 20 Pollution of Water