Extra Questions for Chapter 2 Diversity in the Living World Class 6 Science Curiosity
Class 6 Science Diversity in the Living World Extra Questions
Multiple Choice Questions (MCQ)
Question 1. What does biodiversity refer to?
(a) The variety of different plants and animals in an area
(b) The number of people in a city
(c) The size of a tree
(d) The colour of flowers
Answer
(a) The variety of different plants and animals in an area
Question 2. Which of the following is a characteristic of a shrub?
(a) Grows very tall with a thick trunk
(b) Has many woody stems starting close to the ground
(c) Has a soft green stem
(d) Needs no support to grow
Answer
(b) Has many woody stems starting close to the ground
Question 3. What type of root system do monocots typically have?
(a) Taproot system
(b) Fibrous root system
(c) Both A and B
(d) None of the above
Answer
(b) Fibrous root system
Question 4. Which adaptation helps camels survive in the desert?
(a) Long legs and wide hooves
(b) Thick fur
(c) Ability to fly
(d) Short legs
Answer
(a) Long legs and wide hooves
Question 5. Which of the following is NOT a habitat?
(a) Forest
(b) Desert
(c) Tree
(d) Ocean
Answer
(c) Tree
Fill in the Blanks
1. The _____ is the natural environment where a plant or animal lives.
2. _____ are plants with weak stems that need support to grow.
3. The variety and differences found among living things in a particular area is known as ______.
4. _____ are animals that can live both on land and in water.
5. _____ plants have hard, woody stems.
Answer
1. habitat
2. Climbers
3. diversity
4. Amphibians
5. Trees
True or False
1. Rhododendrons in the Nilgiris are typically shorter with smaller leaves.
2. All plants with parallel venation have dicotyledonous seeds.
3. Adaptations are characteristics that help organisms survive in their specific environment.
4. Desert plants like cacti have large, broad leaves to capture water.
5. Mountain goats are adapted to live in the ocean.
Answer
1. True
2. False
3. True
4. False
5. False
Match the Following
|
Plant or Animal |
Adaptation or Feature |
|
1. Cactus |
A) Lives in the ocean and has a body adapted to underwater life. |
|
2. Mountain Goat |
B) Has spines to reduce water loss. |
|
3. Seaweed |
C) Has a conical shape to shed snow. |
|
4. Frog |
D) Has long legs to jump. |
|
5. Mango Tree |
E) Grows very tall with a hard, woody stem. |
Answer
|
Plant or Animal |
Adaptation or Feature |
|
1. Cactus |
B) Has spines to reduce water loss. |
|
2. Mountain Goat |
C) Has a conical shape to shed snow. |
|
3. Seaweed |
A) Lives in the ocean and has a body adapted to underwater life. |
|
4. Frog |
D) Has long legs to jump. |
|
5. Mango Tree |
E) Grows very tall with a hard, woody stem. |
One Word Answer
Question 1. What does diversity in plants and animals mean?
Answer
Diversity refers to the variety and differences among living things in an area.
Question 2. Name one characteristic that differentiates trees from shrubs.
Answer
Trees are taller and have branches that start higher up the stem compared to shrubs.
Question 3. What type of stem do herbs typically have?
Answer
Herbs usually have soft and green stems.
Question 4. How can leaves differ among plants?
Answer
Leaves can differ in shape, size, and arrangement on the stem.
Question 5. What is a common example of a plant with a taproot?
Answer
The mustard plant is a common example of a plant with a taproot.
Question 6. What type of root system do grasses have?
Answer
Grasses have a fibrous root system.
Question 7. How do birds typically move?
Answer
Birds typically move by flying using their wings.
Question 8. What is one way to group plants?
Answer
Plants can be grouped based on their height, such as trees, shrubs, and herbs.
Question 9. Give an example of a plant with reticulate venation.
Answer
The hibiscus plant is an example of a plant with reticulate venation.
Question 10. What is biodiversity?
Answer
Biodiversity is the variety of different plants, animals, and organisms in a region.
Question 11. What is the purpose of grouping animals?
Answer
To study their behaviour, characteristics, and shared features.
Question 12. Name an animal that can fly.
Answer
Bird.
Question 13. What adaptation helps camels survive in the desert?
Answer
Humps that store fat for energy.
Question 14. Which tree is adapted to snowy mountain conditions?
Answer
Deodar tree
Question 15. Identify a plant that thrives in the ocean.
Answer
Seaweed.
Question 16. What is a habitat?
Answer
The natural environment where a plant or animal lives.
Question 17. Give an example of an aquatic habitat.
Answer
Ocean.
Question 18. What type of animal can live both on land and in water?
Answer
Amphibian.
Question 19. Why is protecting biodiversity important?
Answer
It ensures all living things can thrive.
Question 20. Name one way to help protect the environment.
Answer
Planting trees.
Very Short Answer Questions
Question 1. What is biodiversity?
Answer
Biodiversity refers to the variety of all forms of life on Earth, including different plants, animals, microorganisms, and the ecosystems they form.
Question 2. What is a habitat?
Answer
A habitat is the natural environment where a plant or animal lives and obtains its food, water, shelter, and other survival needs.
Question 3. What is adaptation?
Answer
Question 4. How do plants adapt to survive in deserts?
Answer
Plants in deserts often have fleshy stems to store water and may have spines instead of leaves to reduce water loss.
Question 5. What is the importance of grouping plants and animals?
Answer
Grouping makes it easier to understand and study plants and animals on the basis of their similarities and differences.
Question 6. What are biotic components?
Answer
The living things such as plants and animals in a habitat are its biotic components.
Question 7. Explain abiotic components.
Answer
Various non-living things such as rocks, soil, air and water in a habitat constitute its abiotic components.
Question 8. What are fibrous roots?
Answer
Fibrous roots are a type of root system where many thin roots spread out from the base of the stem, common in plants with parallel venation.
Question 9. Give an example of an aquatic habitat and an organism that lives there.
Answer
An example of an aquatic habitat is a pond, and a fish is an organism that lives there.
Question 10. What are aquatic habitats?
Answer
Habitats of plants and animals that live in water are called aquatic habitat.
Question 11. What is the difference between terrestrial and aquatic habitats?
Answer
Terrestrial habitats are those found on land, while aquatic habitats are found in water bodies like ponds, lakes, and oceans.
Short Answer Questions
Question 1. What type of venation is found in the leaves of monocots?
Answer
Monocots typically have parallel venation in their leaves. In monocotyledonous (monocot) plants, the veins in the leaves run parallel to each other, forming a pattern where the veins are aligned along the length of the leaf. This is in contrast to dicotyledonous (dicot) plants, which typically have a reticulate (net-like) venation pattern where the veins form a branching network.
Question 2. What are the specific features present in a deer that helps it to detect the presence of predators like lion?
Answer
The specific features present in a deer that helps it to detect the presence of predators like lion are:
- Long ears to hear movement of predators.
- Eyes on the sides of its head which allow it to look in all directions.
Question 3. How is cactus adapted to survive in a desert?
Answer
Cactus is adapted to survive in a desert as it has:
- No leaves or spiny leaves to prevent water loss through transpiration.
- It stores water in its fleshy stems.
- Its roots go very deep into the soil for absorbing water.
Question 4. How do amphibians differ from other animals in terms of habitat?
Answer
Amphibians can live both on land and in water, unlike most other animals that are specialized for one type of habitat.
Question 5. What are herbs?
Answer
The small plants with soft tender, green, short stem are called herbs. Herbs hardly attain height more than 1.5 metres. Their stems are not woody and can be bent. A herb may or may not have branches, e.g., tomato, mint, paddy, etc.
Long Answer Questions
Question 1. What are climbers and creepers? Give some examples.
Answer
In some plants like grape vines, money plant, bean stalk, gourd plants, etc., the stem is so weak that it cannot hold it straight. They either stand up with some support or they just spread on the ground. The ones which climb up are called climbers. For example grape vines, money plant. The ones which spread on the ground are called creepers or runners. For example gourd plants.
Question 2. Differentiate between taproot and fibrous root.
Answer
|
Taproot |
Fibrous root |
|
1. Taproot has only one main and long root. The smaller roots that grow from the main root are called lateral roots. |
1. Fibrous roots do not have a main root. All roots seem similar. |
|
2. Taproot goes deep into the soil. |
2. They do not go deep into the soil. |
|
3. Taproots are found in plants which have reticulate venation in their leaves. |
3. These are found in plants which have parallel venation in their leaves. |
Question 3. How are camels adapted to live in desert?
Answer
- The feet of the camels have thick, flat large soles which help them in the movement on sand.
- The long legs of camel help in keeping the body away from the heat of the sand.
- They can live without water for a long time. When water is available, it drinks large amount of water at a time.
- They release very little urine to prevent loss of water.
Question 4. What do you mean by leaf venation? Explain various types of leaf venation with example.
Answer
Leaf venation: The design made by veins in a leaf is called leaf venation. There are the following two types of leaf venation:
- (a) Reticulate venation: If the design of veins makes a net-like structure on both the sides of midrib then it is called reticulate venation. For example, mango leaf, gram leaf.
- (b) Parallel venation: If the veins are parallel to each other or to midrib then such type of venation is called parallel venation. For example, wheat leaf, barley.
Question 5. Identify the following plants as herbs, shrubs and trees.
(i) tomato
(ii) rice
(iii) eucalyptus
(iv) blueberry
(v) China rose
(vi) lavender
(vii) mango
Answer
(i) tomato-herb
(ii) rice-herb
(iii) eucalyptus-tree
(iv) blueberry-shrub
(v) China rose-shrub
(vi) lavender-herb
(vii) mango-tree
Answer
|
Camels living in hot desert |
Camels living in cold desert |
|
1. The camels in the hot desert have long legs with wide hooves. |
1. The height and legs of camels in a cold desert are comparatively shorter than those found in a hot desert. |
|
2. Camels in the hot desert have one hump. |
2. Camels in the cold desert have two humps which shrink in late winters. |
|
3. Camels in the hot desert do not grow long hair from head to neck. |
3. Camels in the cold desert grow long, hair from head to neck, which help them survive in the cold winters. |