Question | Answer |
What is a fish? | A fish is a vertebrate that lices in water and uses fins to move. |
Give some characterists of fish. | Gills, scales, and they are ectotherms. |
How do fish obtain oxygen? | Fish get oxygen from water. |
Describe how fish reproduce. | Most fish have external fertlizatation meaning that the eggs are fertilized outside of the female's body. |
What helps fish to swim? | Fins because they provide a large surface area to push against water. |
What helps fish to catch food? | They have keen senses of touch, smell, and taste. |
What are the three groups of fish? | Jawless fish, cartilaginous fish, and bony fish. |
Describe some things about jawless fish? | They don't have scales and some jawless fish are parasites. |
What are the skeletons of cartilaginous fish made of? | Cartilage. |
Describe cartilaginous fish? | They have jaws, skeletons made of crtilage, and scales. |
Are most cartilaginous fish herbavores, carnivors, or obnivores? | Carnivores. |
What type of fish are sharks? | Cartilaginous fish. |
Are fish endotherms or ectotherms? | Ectotherms. |
What type of fish are most common? | Bony fish. |
What is the skeleton of a jawless fish made of? | Cartilage. |
What is a swim bladder? | It is a gas-filled organ which helps stabilize the fish at different depths in th water. |