Classifying Living Organisms

2. Example of an organism found in Kingdom Protista.
4. Class of Chordata that give birth to live young, produce milk for their young, and are covered in hair.
6. Term meaning an animal's body temperature varies with the temperature of their environment.
9. Animal phylum containing insects, scorpions, spiders and crustaceans.
10. Class of Chordata known as 'jawless fish'.
11. Organisms in this kingdom have cells that have a cell wall, but cannot photosynthesize.
13. Animal phylum, commonly known as round worms.
15. Term used to describe an animal without a backbone.
17. Organisms in this kingdom have cells with no cell wall, and feed on other living things.
19. Class of Chordata that has a skeleton made of cartilage.
23. Animal phylum in which animals have bilateral symmetry, and also have a nerve cord.
24. Example of an organism found in Kingdom Fungi.
27. Subclass of Mammalia that give birth to underdeveloped young, that then develop inside a pouch.
29. Animal phylum, commonly known as starfish.
30. Animal phylum, commonly known as segmented worms.
31. Organisms in this kingdom are single-celled and may be plant or animal like.

1. Term used to describe an animal with a backbone.
2. Class of Chordata that can breathe through their skin and have a tadpole larval stage.
3. Animal phylum, commonly known as flatworms.
5. Subclass of Mammalia that lay eggs.
6. Term meaning an animal can generate it's own body heat.
7. Class of Chordata known as 'bony fish'.
8. Example of an organism found in Kingdom Monera.
12. Subclass of Mammalia that nourish their developing young inside the mother's body by a placenta.
14. Name given to an external skeleton.
16. Name given to an internal skeleton.
18. Class of Chordata that lay eggs, are endothermic and covered in feathers.
20. Animal phylum made up of jellyfish, sea anemones and coral polyps.
21. Animal phylum, commonly known as sponges.
22. Organisms in this kingdom are single-celled, and lack a clearly defined nucleus.
25. Class of Chordata that lay eggs, are ectothermic and have dry, scaly skin.
26. Animal phylum containing snails, slugs, oysters and mussels.
28. Organisms in this kingdom all contain chlorophyll and are able to photosynthesize.