Practice Worksheet : Chapter 2 – Diversity in the Living World Class 6 Science

(CBSE Class 6 Science – Curiosity Book)

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Class 6 Science – Chapter 2 Diversity in the Living World – Practice Worksheet

Complete Worksheet for Class 6 Science – Chapter 2: Diversity in the Living World (Curiosity Textbook).

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SET – 1 (20 Marks) – Diversity in the Living World

SECTION A – MCQs (1 × 4 = 4 marks)

1. The variety of plants and animals found in a region is—
   a) Habitat b) Biodiversity c) Adaptation d) Species
2. Plants like rose with woody stems branching near the ground are—
   a) Trees b) Herbs c) Shrubs d) Climbers
3. Which plant shows reticulate venation?
   a) Grass b) Banana c) Wheat d) Hibiscus
4. Fish move in water using—
   a) Wings b) Fins c) Legs d) Tail only

SECTION B – True / False (1 × 4 = 4 marks)

5. Grass has fibrous roots.
6. All plants in the desert have soft and green stems.
7. Goats use legs to walk and jump.
8. Frogs are amphibians.

SECTION C – Fill in the Blanks (1 × 4 = 4 marks)

(trees, dicots, biodiversity, adaptations)

9. Variety of life forms in an area is called ___________.
10. Plants with thick woody trunks are called ___________.
11. Special features that help living beings survive are called ___________.
12. Seeds with two cotyledons are called ___________.

SECTION D – Very Short Answer (1 × 4 = 4 marks)

13. What is a fibrous root?
14. Give one example of aquatic habitat.
15. What is meant by a climber?
16. Write one characteristic of shrubs.

SECTION E – Short Answer (2 × 2 = 4 marks)

17. Explain why deodar trees have sloping branches.
18. Predict the root type and seed type of a plant with parallel venation.

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ANSWER – SET 1 – Diversity in the Living World

SECTION A – MCQs (1 × 4 = 4 marks)

1. Science of variety of plants and animals in a region is—
   Answer: Biodiversity
2. Plants like rose with woody stems branching near the ground are—
   Answer: Shrubs
3. Which plant shows reticulate venation?
   Answer: Hibiscus
4. Fish move in water using—
   Answer: Fins

SECTION B – True / False (1 × 4 = 4 marks)

5. Grass has fibrous roots.
   Answer: True
6. All plants in the desert have soft green stems.
   Answer: False
7. Goats use legs to walk and jump.
   Answer: True
8. Frogs are amphibians.
   Answer: True

SECTION C – Fill in the Blanks (1 × 4 = 4 marks)

(Options: trees, dicots, biodiversity, adaptations)

9. Variety of life forms in an area is called ________.
   Answer: biodiversity
10. Plants with thick woody trunks are called ________.
    Answer: trees
11. Special features that help living beings survive are called ________.
    Answer: adaptations
12. Seeds with two cotyledons are called ________.
    Answer: dicots

SECTION D – Very Short Answer Questions (1 × 4 = 4 marks)

13. What is a fibrous root?
    Answer: A root system with many thin roots of the same size.
14. Give one example of aquatic habitat.
    Answer: Pond or ocean.
15. What is meant by a climber?
    Answer: A plant with weak stem that needs support to grow.
16. Write one characteristic of shrubs.
    Answer: Medium height with woody stems branching near the ground.

SECTION E – Short Answer Questions (2 × 2 = 4 marks)

17. Why do deodar trees have sloping branches?
    Answer: To allow snow to slide off and prevent damage.
18. Predict the root type and seed type of a plant with parallel venation.
    Answer: Fibrous root and monocot seed.

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SET – 2 (20 Marks) Diversity in the Living World

SECTION A – MCQs (1 × 4 = 4 marks)

1. The pattern of veins on a leaf is called—
   a) Venation b) Adaptation c) Habitat d) Biodiversity
2. A tomato plant is a—
   a) Shrub b) Herb c) Tree d) Creeper
3. Which animal can live both on land and in water?
   a) Cow b) Fish c) Frog d) Lion
4. A camel survives in desert because—
   a) It can fly
   b) It stores water in stem
   c) It has long legs and hump
   d) It eats sand

SECTION B – True / False (1 × 4 = 4 marks)

5. Monocots usually have taproots.
6. Grass shows parallel venation.
7. Birds use wings to fly.
8. Cactus stores water in fleshy stems.

SECTION C – Fill in the Blanks (1 × 4 = 4 marks)

(monocot, habitat, fibrous, reticulate)

9. ___________ roots are seen in wheat and grass.
10. A place where organisms live naturally is called ___________.
11. Leaves of hibiscus show ___________ venation.
12. Wheat is an example of a ___________ plant.

SECTION D – Very Short Answer (1 × 4 = 4 marks)

13. Define biodiversity.
14. What are herbs?
15. Give one example of reticulate venation.
16. Name one terrestrial habitat.

SECTION E – Short Answer (2 × 2 = 4 marks)

17. How do camels survive without water for many days?
18. Why do plants and animals differ from region to region?

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ANSWER KEY – SET 2

SECTION A – MCQs

1. Pattern of veins on a leaf is called—
   Answer: Venation
2. A tomato plant is a—
   Answer: Herb
3. Which animal can live both on land and in water?
   Answer: Frog
4. A camel survives in desert mainly because—
   Answer: It has long legs and a hump

SECTION B – True / False

5. Monocots usually have taproots.
   Answer: False
6. Grass shows parallel venation.
   Answer: True
7. Birds use wings to fly.
   Answer: True
8. Cactus stores water in fleshy stems.
   Answer: True

SECTION C – Fill in the Blanks

(Options: monocot, habitat, fibrous, reticulate)

9. Wheat has ________ roots.
   Answer: fibrous
10. A place where organisms live naturally is called ________.
    Answer: habitat
11. Leaves of hibiscus show ________ venation.
    Answer: reticulate
12. Wheat is a ________ plant.
    Answer: monocot

SECTION D – Very Short Answer

13. Define biodiversity.
    Answer: Variety of plants and animals found in an area.
14. What are herbs?
    Answer: Plants with soft, green and tender stems.
15. Give one example of reticulate venation.
    Answer: Hibiscus leaves
16. Name one terrestrial habitat.
    Answer: Forest

SECTION E – Short Answer

17. How do camels survive without water for many days?
    Answer: They lose little water and store food in their humps.
18. Why do plants and animals differ from region to region?
    Answer: Due to differences in climate and environmental conditions.

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SET – 3 (20 Marks) Diversity in the Living World

SECTION A – MCQs (1 × 4 = 4 marks)

1. Dicots usually have—
   a) Fibrous roots b) Taproots c) No roots d) Parallel venation
2. Rhododendrons in mountains are—
   a) Tall shrubs b) Herbs c) Aquatic d) Desert plants
3. Which animal moves with fins?
   a) Goat b) Fish c) Lizard d) Pig
4. Animals living in water are called—
   a) Aquatic b) Terrestrial c) Amphibians d) Migratory

SECTION B – True / False (1 × 4 = 4 marks)

5. Cactus has a taproot.
6. Adaptations help living beings survive in their region.
7. All plants have the same height.
8. Birds have hollow bones.

SECTION C – Fill in the Blanks (1 × 4 = 4 marks)

(parallel, aquatic, shrubs, roots)

9. Fish live in ___________ habitats.
10. Banana leaves show ___________ venation.
11. Plants with woody branches near the ground are ___________.
12. Plants absorb water from soil through ___________.

SECTION D – Very Short Answer (1 × 4 = 4 marks)

13. What is a taproot?
14. Give one example of an aquatic plant or animal.
15. What is an amphibian?
16. Name any one adaptation found in desert animals.

SECTION E – Short Answer (2 × 2 = 4 marks)

17. Why do mountain animals and plants differ from desert species?
18. Explain the relationship between venation and type of root.

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ANSWER KEY – SET 3

SECTION A – MCQs

1. Dicots usually have—
   Answer: Taproots
2. Rhododendrons in mountains are—
   Answer: Tall shrubs
3. Which animal moves with fins?
   Answer: Fish
4. Animals living in water are called—
   Answer: Aquatic

SECTION B – True / False

5. Cactus has a taproot.
   Answer: True
6. Adaptations help living beings survive in their region.
   Answer: True
7. All plants have the same height.
   Answer: False
8. Birds have hollow bones.
   Answer: True

SECTION C – Fill in the Blanks

(Options: parallel, aquatic, shrubs, roots)

9. Fish live in ________ habitats.
   Answer: aquatic
10. Banana leaves show ________ venation.
    Answer: parallel
11. Plants with woody branches near the ground are ________.
    Answer: shrubs
12. Plants absorb water through ________.
    Answer: roots

SECTION D – Very Short Answer

13. What is a taproot?
    Answer: A main root with smaller side roots.
14. Give one example of an aquatic plant or animal.
    Answer: Fish
15. What is an amphibian?
    Answer: An animal living both on land and in water.
16. Name one adaptation of desert animals.
    Answer: Thick skin or long legs.

SECTION E – Short Answer

17. Why do mountain plants differ from desert plants?
    Answer: Because mountain regions are cold while deserts are hot and dry.
18. Explain the venation–root relationship.
    Answer: Parallel venation → fibrous roots; Reticulate venation → taproots.

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SET – 4 (20 Marks) Diversity in the Living World

SECTION A – MCQs (1 × 4 = 4 marks)

1. Mango plant is a—
   a) Herb b) Shrub c) Tree d) Grass
2. Grass shows—
   a) Taproot b) Fibrous root c) No root d) Thick root
3. Whale lives in—
   a) Forest b) Ocean c) Mountain d) Grassland
4. The number of cotyledons in a monocot seed is—
   a) One b) Two c) Three d) Five

SECTION B – True / False (1 × 4 = 4 marks)

5. Climbers have very strong stems.
6. Cactus stores water in stems.
7. Terrestrial animals live in water.
8. Dicot seeds split into two parts.

SECTION C – Fill in the Blanks (1 × 4 = 4 marks)

(desert, dicot, fibrous, venation)

9. Wheat plant has ___________ roots.
10. The pattern of veins on a leaf is called ___________.
11. Kidney beans are an example of ___________ seeds.
12. Camel is commonly found in ___________ habitat.

SECTION D – Very Short Answer (1 × 4 = 4 marks)

13. What is an adaptation?
14. Give one example of a monocot plant.
15. Name an animal that walks and flies.
16. What are sacred groves?

SECTION E – Short Answer (2 × 2 = 4 marks)

17. How does a cactus survive in the desert?
18. Why are habitats important for living organisms?

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ANSWER KEY – SET 4

SECTION A – MCQs

1. Mango plant is a—
   Answer: Tree
2. Grass shows—
   Answer: Fibrous roots
3. Whale lives in—
   Answer: Ocean
4. A monocot seed has—
   Answer: One cotyledon

SECTION B – True / False

5. Climbers have strong stems.
   Answer: False
6. Cactus stores water in stems.
   Answer: True
7. Terrestrial animals live in water.
   Answer: False
8. Dicot seeds split into two parts.
   Answer: True

SECTION C – Fill in the Blanks

(Options: desert, dicot, fibrous, venation)

9. Wheat has ________ roots.
   Answer: fibrous
10. Pattern of veins on a leaf is ________.
    Answer: venation
11. Kidney beans are an example of ________ seeds.
    Answer: dicot
12. Camel is found in ________ habitat.
    Answer: desert

SECTION D – Very Short Answer

13. What is an adaptation?
    Answer: A feature that helps an organism survive.
14. Give one example of a monocot.
    Answer: Wheat
15. Name an animal that walks and flies.
    Answer: Pigeon
16. What are sacred groves?
    Answer: Community-protected forest patches rich in biodiversity.

SECTION E – Short Answer

17. How does cactus survive in deserts?
    Answer: Thick stems store water and spines reduce water loss.
18. Why are habitats important?
    Answer: They provide food, water, air, shelter and safety to organisms.

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SET – 5 (20 Marks) Diversity in the Living World

SECTION A – MCQs (1 × 4 = 4 marks)

1. Organisms that live on land are called—
   a) Aquatic b) Terrestrial c) Amphibians d) Migratory
2. Which plant has parallel venation?
   a) Grass b) Hibiscus c) Mango d) Neem
3. Frogs belong to—
   a) Aquatic animals b) Terrestrial animals c) Amphibians d) Reptiles
4. Rhododendron plants in windy mountains have—
   a) Large leaves b) Small leaves c) No leaves d) Floating leaves

SECTION B – True / False (1 × 4 = 4 marks)

5. All aquatic animals have wings.
6. Plants differ in height, stem, leaves and roots.
7. Desert nights can be very cold.
8. Monocots usually show parallel venation.

SECTION C – Fill in the Blanks (1 × 4 = 4 marks)

(adaptation, shrub, aquatic, roots)

9. Fish live in ___________ habitat.
10. ___________ help plants absorb water.
11. Rose plant is a ___________.
12. A special feature helping survival is called an ___________.

SECTION D – Very Short Answer (1 × 4 = 4 marks)

13. Define terrestrial habitat.
14. Give one example of a desert plant.
15. What are dicots?
16. Name an animal with a streamlined body.

SECTION E – Short Answer (2 × 2 = 4 marks)

17. Why do animals in forests have different colours?
18. How can damage to habitats cause loss of biodiversity?

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ANSWER KEY – SET 5

SECTION A – MCQs

1. Organisms living on land are—
   Answer: Terrestrial
2. Which plant has parallel venation?
   Answer: Grass
3. Frogs belong to—
   Answer: Amphibians
4. Rhododendron in mountains have—
   Answer: Small leaves

SECTION B – True / False

5. All aquatic animals have wings.
   Answer: False
6. Plants differ in height and stem type.
   Answer: True
7. Desert nights can be very cold.
   Answer: True
8. Monocots usually show parallel venation.
   Answer: True

SECTION C – Fill in the Blanks

(Options: adaptation, shrub, aquatic, roots)

9. Fish live in ________ habitat.
   Answer: aquatic
10. Plants absorb water using ________.
    Answer: roots
11. Rose plant is a ________.
    Answer: shrub
12. A special feature helping survival is ________.
    Answer: adaptation

SECTION D – Very Short Answer

13. Define terrestrial habitat.
    Answer: A land-based habitat such as forests or mountains.
14. Give one example of a desert plant.
    Answer: Cactus
15. What are dicots?
    Answer: Seeds with two cotyledons.
16. Name an animal with streamlined body.
    Answer: Fish

SECTION E – Short Answer

17. Why do forest animals have different colours?
    Answer: To hide from predators (camouflage).
18. How does habitat destruction reduce biodiversity?
    Answer: Species lose shelter and food, leading to extinction.

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