Across
- 4. when the other side of the body is similar to the other.
- 7. Glands where milk is being produced.
- 10. a process that gives off heat.
- 11. Vascular System a tube in the animal body that transports food and waste.
- 13. Bladder gas-filled organ found in fish.
- 15. animal with no backbone.
- 17. form of cnidarian that swims through water.
- 18. chemical reaction that absorbs thermal energy from its surroundings.
- 19. removes waste products from the baby’s blood.
Down
- 1. develops skin or body tissue.
- 2. supports tissues around the whole body.
- 3. animals that are capable of having a backbone.
- 5. the condition of having both male and female reproductive organs.
- 6. a sponge have a _________ body.
- 7. when an animal loses its skin, feathers, or hair, for its new growth.
- 8. type of asexual reproduction.
- 9. what is the middle of a starfish called?
- 12. eggs that contain an amnion.
- 14. another name for adult jellyfish.
- 16. the lowest part of the ocean.
- 18. skeleton protects the animals’ bodies.