Classifying Living Organisms

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Across
  1. 4. Class of Chordata that lay eggs, are endothermic and covered in feathers.
  2. 5. Organisms in this kingdom have cells with no cell wall, and feed on other living things.
  3. 7. Subclass of Mammalia that nourish their developing young inside the mother's body by a placenta.
  4. 9. Class of Chordata that can breathe through their skin and have a tadpole larval stage.
  5. 11. Term used to describe an animal with a backbone.
  6. 15. Organisms in this kingdom are single-celled, and lack a clearly defined nucleus.
  7. 17. Example of an organism found in Kingdom Fungi.
  8. 18. Class of Chordata that has a skeleton made of cartilage.
  9. 19. Organisms in this kingdom have cells that have a cell wall, but cannot photosynthesize.
  10. 21. Animal phylum containing snails, slugs, oysters and mussels.
  11. 23. Term used to describe an animal without a backbone.
  12. 25. Organisms in this kingdom all contain chlorophyll and are able to photosynthesize.
  13. 27. Subclass of Mammalia that lay eggs.
  14. 28. Animal phylum containing insects, scorpions, spiders and crustaceans.
  15. 29. Class of Chordata known as 'bony fish'.
  16. 30. Animal phylum in which animals have bilateral symmetry, and also have a nerve cord.
  17. 31. Animal phylum, commonly known as starfish.
  18. 32. Animal phylum, commonly known as sponges.
Down
  1. 1. Class of Chordata that give birth to live young, produce milk for their young, and are covered in hair.
  2. 2. Subclass of Mammalia that give birth to underdeveloped young, that then develop inside a pouch.
  3. 3. Example of an organism found in Kingdom Protista.
  4. 5. Class of Chordata known as 'jawless fish'.
  5. 6. Term meaning an animal can generate it's own body heat.
  6. 8. Term meaning an animal's body temperature varies with the temperature of their environment.
  7. 10. Animal phylum, commonly known as round worms.
  8. 12. Animal phylum, commonly known as flatworms.
  9. 13. Organisms in this kingdom are single-celled and may be plant or animal like.
  10. 14. Animal phylum made up of jellyfish, sea anemones and coral polyps.
  11. 16. Animal phylum, commonly known as segmented worms.
  12. 20. Example of an organism found in Kingdom Monera.
  13. 22. Class of Chordata that lay eggs, are ectothermic and have dry, scaly skin.
  14. 24. Name given to an internal skeleton.
  15. 26. Name given to an external skeleton.