VERTEBRATES AND INVERTEBRATES. Sabas Delaportas - Sofia Diaz Trepat

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Across
  1. 2. A limbless cold-blooded vertebrate animal with gills and fins living wholly in water.
  2. 4. A warm-blooded egg-laying vertebrate animal distinguished by the possession of feathers, wings a beak, and typically by being able to fly.
  3. 6. Animal of a large group distinguished by the possession of a backbone or spinal column,including mammals,birds,reptiles,amphibians and fishes.
  4. 8. Are sensitive to touch and vibration.
  5. 9. A small arthropod animal that has six legs and generally one or two pairs of wings.
  6. 11. An invertebrate of a large phylum with includes snails, octopuses. They have a soft unsegmented body and live in aquatic or damp habitats, and most kinds have and external.
  7. 12. A large group of mainly aquatic arthropods which include crabs, lobsters and shrimps.
  8. 14. Vital for flight and endothermy (they give excellent insulation against heat loss)
  9. 17. A cold-blooded vertebrate animal.they are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
  10. 18. The process of transformation from an inmature form to an adult form in two or more distinct stages.
  11. 19. Covered in mucus help streamling for swwiming.
Down
  1. 1. The hard protective outer case of a mollusc or crustacean.
  2. 3. An animal lacking a backbone, such as an arthropod, mollusc, annelid.
  3. 5. Very light since no bone or teeth.
  4. 7. Small insect with long, thin legs Two pairs of wings and antena sense chemicals in the environment.
  5. 10. An arthropod of a group that includes the centipedes, millipedes. Have elongated bodies with numerous leg.
  6. 13. These are important sense organs.
  7. 15. A vertebrate animal. they are distinguished by having a dry scaly skin and typically laying soft shelled eggs on land
  8. 16. A warm blooded vertebrate animal that is distinguished by the possession of hair or fur females that secrete milk for the nourishment of the young.
  9. 20. A thick, hardened shell for protection against predators.