Q. Moist cuticle is the respiratory organ in
Solution:
Animals Respiration Lower invertebrates like sponges, coelenterates, flatworms Entire / general body surface Earthworms Moist cuticle Insects Network of tubes (tracheal tubes) Aquatic arthropods and molluscs Gills (special vascularised structures) Fishes Gills Amphibians like frogs Lungs and moist skin Reptiles, birds and mammals Lungs
| Animals | Respiration |
| Lower invertebrates like sponges, coelenterates, flatworms | Entire / general body surface |
| Earthworms | Moist cuticle |
| Insects | Network of tubes (tracheal tubes) |
| Aquatic arthropods and molluscs | Gills (special vascularised structures) |
| Fishes | Gills |
| Amphibians like frogs | Lungs and moist skin |
| Reptiles, birds and mammals | Lungs |