1. Chapter 11

3. I. Multicellular II. Eukaryotic III. Specialized for different functions IV. Have a protein called collagen V. Get energy by eating other organisms- consumers VI. Digest own food VII. Reproduce sexually VIII. Capable of movement

5.  Vertebrates- animals with a backbone  Invertebrate- animals without a backbone

6. RRadial symmetry- Body parts are arranged in a circle around the center of the body. BBilateral symmetry- Body parts are arranged the same way on both sides of the body. AAsymmetry- Body parts are not arranged in any particular way.

7.  When scientists classify an animal`s DNA it is called molecular classification.

9.  nerve chord  Tail  Pharyngeal pouch

10.  Flexible  Rod  Extend to the length of a body

11.  Connects all nerves

12.  Well developed organisms.

14.  Have gills and fins  Jawless fish, cartilaginous fish, and bony fish.

15.  Lack jaws

16. I. Frogs, toads, and salamanders II. Skeletons and legs III. Smooth, and moist skin IV. Develop lungs V. Live on land

17. SSkeletons CCartilage

18.  No cartilage  Grouped together

19. I. Lizards, snakes, turtles, crocodiles, and alligators II. Water proof skin with scales III. 3-chambered hearts IV. Lungs V. Lay eggs on land

20. I. 2 legs II. 2 wings III. Ducks, flamingoes, penguins, etc. IV. Make nests to hold eggs V. 4-chambered hearts VI. Beaks VII. Digestive system

21. I. Whales, dolphins, humans, etc. II. Fur III. Chew with teeth IV. Nervous system V. Produce milk