Chapter 2. Diversity in the Living World-40 Important MCQs with Answers Science Curiosity Class 6 In English

Chapter 2. Diversity in the Living World

This section contains 40 important multiple-choice questions (MCQs) based on the latest CBSE syllabus. Attempt all the questions first and then check your answers from the Answer Key given at the end.

40 Important MCQs with Answer Key

Question 1. What is biodiversity?

• (A) Variety of living organisms
• (B) Number of trees
• (C) Number of animals
• (D) Variety of rocks

Question 2. Classification of living organisms is done mainly to—

• (A) increase their number
• (B) make their study easier
• (C) change their habitat
• (D) protect only plants

Question 3. Which of the following is a herb?

• (A) Mango
• (B) Rose
• (C) Mint
• (D) Banyan

Question 4. Which plant is a shrub?

• (A) Rose
• (B) Wheat
• (C) Grass
• (D) Banana

Question 5. Which of the following is a tree?

• (A) Mango
• (B) Pea
• (C) Pumpkin
• (D) Spinach

Question 6. A climber grows—

• (A) under water
• (B) with support
• (C) on the ground only
• (D) inside soil

Question 7. A creeper—

• (A) grows with support
• (B) grows underground
• (C) spreads on the ground
• (D) grows in water only

Question 8. Which type of venation is found in mango leaves?

• (A) Parallel
• (B) Reticulate
• (C) Circular
• (D) Networkless

Question 9. Wheat leaves show—

• (A) Reticulate venation
• (B) Parallel venation
• (C) No venation
• (D) Spiral venation

Question 10. Taproots are generally found in—

• (A) Dicot plants
• (B) Monocot plants
• (C) Mosses
• (D) Ferns

Question 11. Fibrous roots are commonly found in—

• (A) Wheat
• (B) Mango
• (C) Bean
• (D) Pea

Question 12. A monocot seed contains—

• (A) One cotyledon
• (B) Two cotyledons
• (C) Three cotyledons
• (D) No cotyledon

Question 13. A dicot seed contains—

• (A) One cotyledon
• (B) Two cotyledons
• (C) Three cotyledons
• (D) Four cotyledons

Question 14. Which is an aquatic animal?

• (A) Whale
• (B) Horse
• (C) Goat
• (D) Camel

Question 15. Which is a terrestrial animal?

• (A) Dolphin
• (B) Horse
• (C) Octopus
• (D) Shark

Question 16. Frog lives—

• (A) only in water
• (B) only on land
• (C) both on land and in water
• (D) on trees only

Question 17. The natural place where an organism lives is called its—

• (A) Habitat
• (B) Shelter
• (C) House
• (D) Nest

Question 18. Adaptations help organisms to—

• (A) change colour only
• (B) survive in their habitat
• (C) become larger
• (D) reproduce faster

Question 19. Which scientist mentioned in the chapter made significant contributions to botany?

• (A) Janaki Ammal
• (B) C. V. Raman
• (C) Jagadish Chandra Bose
• (D) Homi Bhabha

Question 20. The Silent Valley Movement was started to protect—

• (A) Biodiversity
• (B) Rivers
• (C) Mountains
• (D) Deserts

Question 21. Plants with reticulate venation generally have—

• (A) Taproots
• (B) Fibrous roots
• (C) No roots
• (D) Aerial roots only

Question 22. Plants with parallel venation usually have—

• (A) Taproots
• (B) Fibrous roots
• (C) Prop roots
• (D) Breathing roots

Question 23. Which of the following is a creeper?

• (A) Pumpkin
• (B) Grapevine
• (C) Money plant
• (D) Pea

Question 24. Which of the following is a climber?

• (A) Pumpkin
• (B) Watermelon
• (C) Grapevine
• (D) Bottle gourd on the ground

Question 25. The study of living organisms becomes easier through—

• (A) Classification
• (B) Pollution
• (C) Farming
• (D) Irrigation

Question 26. Which plant has fibrous roots?

• (A) Rice
• (B) Mango
• (C) Mustard
• (D) Bean

Question 27. Which plant has taproots?

• (A) Wheat
• (B) Rice
• (C) Gram
• (D) Maize

Question 28. Which is NOT a woody plant?

• (A) Herb
• (B) Shrub
• (C) Tree
• (D) None of these

Question 29. The main purpose of observing living organisms is to—

• (A) classify them
• (B) disturb them
• (C) collect them
• (D) remove them

Question 30. Biodiversity is important because it—

• (A) maintains ecological balance
• (B) increases pollution
• (C) reduces rainfall
• (D) destroys habitats

Question 31. Which animal has adaptations for climbing mountains?

• (A) Mountain goat
• (B) Camel
• (C) Dolphin
• (D) Whale

Question 32. Which characteristic is used for classifying plants?

• (A) Stem
• (B) Roots
• (C) Leaves
• (D) All of these

Question 33. Which of the following shows reticulate venation?

• (A) Mango
• (B) Wheat
• (C) Rice
• (D) Maize

Question 34. Which of the following shows parallel venation?

• (A) Banana
• (B) Mango
• (C) Rose
• (D) Bean

Question 35. Which one is correctly matched?

• (A) Herb – Soft stem
• (B) Tree – Soft stem
• (C) Shrub – Climber
• (D) Creeper – Woody trunk

Question 36. Which of the following helps in conserving biodiversity?

• (A) Protecting forests
• (B) Cutting trees
• (C) Hunting animals
• (D) Polluting rivers

Question 37. Which is an example of a dicot plant?

• (A) Bean
• (B) Wheat
• (C) Rice
• (D) Maize

Question 38. Which is an example of a monocot plant?

• (A) Wheat
• (B) Gram
• (C) Pea
• (D) Mango

Question 39. The chapter mainly encourages students to develop—

• (A) Observation skills
• (B) Memorisation only
• (C) Drawing skills only
• (D) Writing skills only

Question 40. Every living organism plays an important role in maintaining—

• (A) Ecological balance
• (B) Traffic rules
• (C) Weather forecast
• (D) Population growth

Answer Key

1. A
2. B
3. C
4. A
5. A
6. B
7. C
8. B
9. B
10. A
11. A
12. A
13. B
14. A
15. B
16. C
17. A
18. B
19. A
20. A
21. A
22. B
23. A
24. C
25. A
26. A
27. C
28. A
29. A
30. A
31. A
32. D
33. A
34. A
35. A
36. A
37. A
38. A
39. A
40. A