Across
- 3. fish use this to swim
- 4. group of animals that eat plants and animals
- 6. a vertebrate that has no legs and no wings , but use their strong muscles and scales to move
- 7. organ that helps in breathing in birds, reptiles and mammals
Down
- 1. group of invertebrates that use 6 legs to move, some may have wings too
- 2. group of animals that give birth to young ones
- 3. have webbed feet to swim
- 5. animals that gnaw or nibble at their food