Across
- 4. efficient for crawling and climbing
- 5. three pairs of legs, two pairs of wings for flying
- 7. a thick, hardened shell for protection against predators
- 10. dry, scaly skin - limits water loss, mouth has teeth or bony ridges to aid feeding
- 11. eye on tentacle
- 13. fins for movement and stability, scales, operculum covering gills
- 16. are sensitive to touch and vibration
- 18. moist skin, four limbs, wide mouth and lungs which are used for gas exchange
- 20. the insects are … that show an interesting adaptation in their life cycle.
- 21. with a backbone
Down
- 1. are found on each segment - used during movement
- 2. gills under shell allow uptake of oxygen from water
- 3. pinna on ear, fur body covering allows endothermy as a means of keeping constant body temperature
- 6. protects the soft body of the snail.
- 8. have eight legs, head and thorax are combined, piercing jaws, simple eyes(more than one pair)
- 9. covered in mucus help streamlining for swimming
- 11. with sucking mouthparts for drinking blood
- 12. Antennae, many body segments, walking legs, body covering, hard exoskeleton
- 14. which are used for gas exchange
- 15. forelimbs are modified as…
- 17. without a backbone
- 19. beak very light since no bone or teeth, feathers, wings, lungs