Vertebrates and Invertebrates Study Guide Test: Tuesday, November 11th 1. Animals with _______backbones___ are called vertebrates. 2. Animals that do not have backbones are called _______Invertebrates______. 3. List the five groups of vertebrates: Mammals Birds Amphibians Reptiles Fish 4. List the five characteristics of animals. Eat other organisms Multi celled True nucleus in cells Move about Digest their food 5. ____Fish______ use fins for swimming, gills for breathing, have scales, and are coldblooded. 6. _______Amphibians________ have moist, smooth skins; live in water part of their lives and on land the other part. 7. _________Reptiles_______ are coldblooded, land animals that lay eggs. 8. ______Birds_______ are warmblooded, have wings and feathers, have hollow legs, have beaks, and lay hard shelled eggs. 9. _______Mammals_____ are warmblooded, produce milk, have hair or fur, and have complex brains. 10. The word Amphibian means __double life____. 11. _Lizards____and ____snakes____ are the largest group of reptiles. 12. Marsupials are ____mammals__ that carry their young in a pouch. 13. ___ Insects ____, __Mollusks_______, _crustaceans___, and __Arachnids__ are the four main groups of invertebrates. 14. Endothermic means an animal that is __warmblooded_______. 15. An exoskeleton is a skeleton on the _____on the outside_ of the body. 16. An endoskeleton is a skeleton on the __inside____ of the body. 17. ____Molting____ is the shedding of the exoskeleton.