Vertebrates
Across
- 2. A muscular organ where little stones crush the food in birds/chickens
- 5. System that breaks down food and absorbs nutrients
- 7. System that helps the vertebrate keep its shape
- 10. System that takes in oxygen from the environment
- 11. System that helps gather and understand information
- 12. An organ that takes in oxygen from the water
- 15. A God-given behavior that an animal is born with
- 16. An organ that fills with air when a vertebrate breathes in
- 17. A curved, pointed nail on the end of an animal's toe
- 19. A sharp, hooked claw of a bird of prey
Down
- 1. Something that an animal learns to do
- 3. Anything that causes an organism to respond or act
- 4. System that helps the animal move
- 6. A part of the nervous system that controls everything in the body
- 7. A stretchy bag made of muscle that digests swallowed food
- 8. The ability to "see" by using sound waves
- 9. An organ that holds and soaks up food in birds/chickens
- 13. The group of bones forming the frame for the body
- 14. System that provides nutrients and oxygen to the body
- 18. A covering of small plates