2. FFish are cold blooded vertebrates. FAnother name for cold blooded is _____________. FWhat does cold blooded mean? FFish are cold blooded vertebrates. FAnother name for cold blooded is _____________. FWhat does cold blooded mean? ectothermic Body Temperature

3. FThe natural habitat of the fish is in ________. FBecause of this, the fish uses ____ to help them move. FThe natural habitat of the fish is in ________. FBecause of this, the fish uses ____ to help them move. Where they live water fins

4. FMany fish have _____ that cover their bodies. FThese scales are made of a hard substance. FWhat do you think they are for? FMany fish have _____ that cover their bodies. FThese scales are made of a hard substance. FWhat do you think they are for? Body Covering scales

5. FFish obtain oxygen not through lungs but instead by using ____ _. FHow are fish gills and human lungs similar? FFish have a two chambered heart and a _____ circulatory system. FFish obtain oxygen not through lungs but instead by using ____ _. FHow are fish gills and human lungs similar? FFish have a two chambered heart and a _____ circulatory system. Obtaining Oxygen gills closed

6. Reproduction FMost have __________ fertilization. FWhat does this mean? FSharks and guppies have _________ fertilization. FMost have __________ fertilization. FWhat does this mean? FSharks and guppies have _________ fertilization. external internal

7. Characteristics FEcothermic FLives in water FFins FGills F2 chambered heart FMost have scales FEcothermic FLives in water FFins FGills F2 chambered heart FMost have scales FMost have external fertilization FSome have internal fertilization

8. Jawless Fish FDo not have scales FHave endoskeletons made of cartilage FDo not have paired fins FNo jaws - instead they scrape stab and suck to eat FDo not have scales FHave endoskeletons made of cartilage FDo not have paired fins FNo jaws - instead they scrape stab and suck to eat

9. Cartilaginous Fish FSkeletons made of cartilage FHave paired fins FHave jaws FRough pointed scales FSkeletons made of cartilage FHave paired fins FHave jaws FRough pointed scales

10. Bony Fish FSkeletons of bone FCovered with scales FHave swim bladder that is filled with oxygen, nitrogen, and carbon dioxide gases. FSkeletons of bone FCovered with scales FHave swim bladder that is filled with oxygen, nitrogen, and carbon dioxide gases.