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NCERT Solutions › Biology › Chapter 4

Chapter 4: Animal Kingdom

NCERT Solutions for CBSE Class 10 Biology — 52 solved questions with detailed explanations.

52
Questions
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Solved Questions

Q1. Coelom is absent in:

Difficulty: Easy · Topic: Body Cavity

Solution

Platyhelminthes (flatworms) are acoelomate - no body cavity between body wall and gut.

Q2. The water vascular system is characteristic of:

Difficulty: Easy · Topic: Echinodermata

Solution

Water vascular system (ambulacral system) is unique to Echinodermata. Used for locomotion, respiration, and food capture.

Q3. Which phylum does Spongilla belong to?

Difficulty: Easy · Topic: Classification

Solution

Spongilla belongs to phylum Porifera. Key features: Pore-bearing, aquatic, have canal system.

Q4. Which phylum does Hydra belong to?

Difficulty: Easy · Topic: Classification

Solution

Hydra belongs to phylum Cnidaria. Key features: Cnidocytes, radial symmetry, aquatic.

Q5. Which phylum does Earthworm belong to?

Difficulty: Easy · Topic: Classification

Solution

Earthworm belongs to phylum Annelida. Key features: Segmented body, closed circulation.

Q6. Which phylum does Cockroach belong to?

Difficulty: Easy · Topic: Classification

Solution

Cockroach belongs to phylum Arthropoda. Key features: Jointed appendages, exoskeleton, largest phylum.

Q7. Which phylum does Human belong to?

Difficulty: Easy · Topic: Classification

Solution

Human belongs to phylum Chordata. Key features: Notochord, dorsal nerve cord, pharyngeal slits.

Q8. Sponges belong to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Porifera.

Q9. Earthworm belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Annelida.

Q10. Snails belong to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Mollusca.

Q11. Roundworms belong to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Nematoda (Aschelminthes).

Q12. Sharks belong to class:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Chondrichthyes.

Q13. Frogs belong to class:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Amphibia.

Q14. Ctenophores have:

Difficulty: Easy · Topic: Animal Kingdom

Solution

comb plates for locomotion.

Q15. Hemichordates include:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Balanoglossus.

Q16. Amphioxus belongs to:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Cephalochordata.

Q17. Cyclostomes lack:

Difficulty: Easy · Topic: Animal Kingdom

Solution

jaws.

Q18. Bony fish belong to class:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Osteichthyes.

Q19. Sycon belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Sycon, Euplectella, Spongilla → Phylum Porifera. Features: aquatic, pore-bearing, canal system.

Q20. Euplectella belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Euplectella → Porifera.

Q21. Spongilla belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Spongilla → Porifera.

Q22. Hydra belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Hydra, Obelia, Aurelia, Adamsia → Phylum Cnidaria. Features: cnidocytes, radial symmetry.

Q23. Obelia belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Obelia → Cnidaria.

Q24. Aurelia belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Aurelia → Cnidaria.

Q25. Taenia belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Taenia, Fasciola, Planaria → Phylum Platyhelminthes. Features: flat body, acoelomate.

Q26. Fasciola belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Fasciola → Platyhelminthes.

Q27. Planaria belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Planaria → Platyhelminthes.

Q28. Ascaris belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Ascaris, Wuchereria, Ancylostoma → Phylum Nematoda. Features: round body, pseudocoelomate.

Q29. Wuchereria belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Wuchereria → Nematoda.

Q30. Ancylostoma belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Ancylostoma → Nematoda.

Q31. Nereis belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Nereis, Pheretima, Hirudinaria → Phylum Annelida. Features: segmented, coelomate, closed circulation.

Q32. Pheretima belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Pheretima → Annelida.

Q33. Hirudinaria belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Hirudinaria → Annelida.

Q34. Apis belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Apis, Bombyx, Limulus, Palamnaeus → Phylum Arthropoda. Features: jointed legs, exoskeleton, open circulation.

Q35. Bombyx belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Bombyx → Arthropoda.

Q36. Limulus belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Limulus → Arthropoda.

Q37. Pila belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Pila, Octopus, Loligo, Sepia → Phylum Mollusca. Features: soft body, mantle, open circulation mostly.

Q38. Octopus belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Octopus → Mollusca.

Q39. Loligo belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Loligo → Mollusca.

Q40. Asterias belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Asterias, Echinus, Holothuria → Phylum Echinodermata. Features: water vascular system, spiny skin.

Q41. Echinus belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Echinus → Echinodermata.

Q42. Holothuria belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Holothuria → Echinodermata.

Q43. Balanoglossus belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Balanoglossus, Saccoglossus → Phylum Hemichordata. Features: worm-like, gill slits, proboscis.

Q44. Saccoglossus belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

Saccoglossus → Hemichordata.

Q45. Human belongs to phylum:

Difficulty: Easy · Topic: Animal Kingdom

Solution

Human, frog, bird, fish → Phylum Chordata. Features: notochord, dorsal nerve cord.

Q46. frog belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

frog → Chordata.

Q47. bird belongs to phylum:

Difficulty: Easy · Topic: Classification

Solution

bird → Chordata.

Q48. Metameric segmentation is found in:

Difficulty: Easy-Medium · Topic: Segmentation

Solution

Metameric segmentation (true segmentation) is found in Annelida and Arthropoda.

Q49. Jellyfish belongs to phylum:

Difficulty: Easy-Medium · Topic: Animal Kingdom

Solution

Cnidaria.

Q50. Insects belong to phylum:

Difficulty: Easy-Medium · Topic: Animal Kingdom

Solution

Arthropoda.

Q51. Starfish belongs to phylum:

Difficulty: Easy-Medium · Topic: Animal Kingdom

Solution

Echinodermata.

Q52. Tapeworm belongs to phylum:

Difficulty: Easy-Medium · Topic: Animal Kingdom

Solution

Platyhelminthes.

Other Chapters in Biology

Ch 1: The Living WorldCh 2: Biological ClassificationCh 3: Plant KingdomCh 5: Morphology of PlantsCh 6: Anatomy of PlantsCh 7: Structural Organisation in AnimalsCh 8: Cell Unit of LifeCh 9: BiomoleculesCh 10: Cell CycleCh 11: Transport in PlantsCh 12: Mineral NutritionCh 13: PhotosynthesisCh 14: Respiration in PlantsCh 15: Plant GrowthCh 16: Digestion & AbsorptionCh 17: Breathing & Gas ExchangeCh 18: Body Fluids & CirculationCh 19: Excretory ProductsCh 20: Locomotion & MovementCh 21: Neural ControlCh 22: Chemical Coordination

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