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Fish (1)
- 2. They breathe underwater using gills , not lungs . They always live in water.
- 3. Their body temperatureis similar to the temperature of water . Fish are the first animal to evolve jaws.
- 4. They haven´t limbs. They have scales , fins and a tail to move . They are oviparous . They lay many eggs .
- 5. They eat plantmaterial and other acuatic animals . They are cold-blooded.
- 6.
- 7. They have ahighly developed brain
- 8. They have awell-developed internal skeleton of cartilage and bone. So vertebrates can develop bigger bodies than invertebrates
- 9. They have advancednervous system, more complex than that of invertebrates
- 10. They have well-developedsensory organs These animals can learn from their mistakes
- 11.
- 12. They have ahighly developed brain
- 13. They have awell-developed internal skeleton of cartilage and bone. So vertebrates can develop bigger bodies than invertebrates
- 14. They have advancednervous system, more complex than that of invertebrates
- 15. They have well-developedsensory organs These animals can learn from their mistakes
- 16. They can reactvery quickly to change in their surroundings
- 17. The highly developednervous system and internal skeletons of vertebrates make them adaptable to land, sea and air. So they live in a variety of habitats Most vertebrates can move and are heterotrophic (they can make their own food)
- 18. They have arespiratory system with either gills or lungs
- 19. They have anouter covering of protective celular skin
- 20. Vertebrates are only2% of the animals species They have a bilateral symmetry plan (right and left halves that mirror each other and front and back end
- 21. Human beings arevertebrates