animal Crossword

3. Bladder – An organ that helps fish float and control their depth.
9. – An animal without a backbone.
10. Symmetry – A body that can be divided into equal left and right halves.
11. – A body shape with no matching sides.
15. – A free-swimming, umbrella-shaped body form with tentacles hanging down.
20. – Able to control body temperature internally (warm-blooded).
21. – A skeleton inside the body.

1. – A flexible tissue found in parts of the skeleton like the nose or ears.
2. Eggs – Eggs with a protective shell that keep the embryo safe on land.
4. – An animal with a backbone.
5. Vascular System – A system in some animals that uses water for movement and feeding.
6. – An organism that has both male and female reproductive organs.
7. – Body temperature depends on the environment (cold-blooded).
8. – To shed an outer covering to grow.
12. Glands – Glands that produce milk to feed young.
13. – An organ that provides nutrients and oxygen to a developing baby inside the mother.
14. – A type of asexual reproduction where a new organism grows off the parent.
16. – A hard outer covering that supports and protects the body.
17. – Living on or at the bottom of a body of water.
18. Symmetry – Body parts arranged around a central point.
19. – A stationary, tube-shaped body form with tentacles facing upward.