Animal Crossword Puzzle

5. A highly evolved and specialized organ developing on each side of the anterior chest wall
6. A creature that has both male and female reproductive organs.
7. A hard covering that supports and protects the bodies of some type of animal.
8. A vascular organ in most mammals that unites the fetus to the uterus of the mother.
11. Located in the body cavity and is derived from an outpocketing of the digestive tube.
14. Uses water pressure to facilitate locomotion, feeding, and gas exchange through the network of canals and tube feet.
16. Animal that has a backbone and a skeleton.
17. Relating to or occurring at the bottom of a body of water.
18. A free swimming umbrella shaped body cnidarian.
19. An animal that has a backbone and a skeleton
20. Maintaining a stable internal body temperature by generating heat internally, independent of the environment.
21. A plant and animal symmetry in which similar parts are arranged in a balanced way around the center of the body.

1. A form of asexual reproduction where a new organism develops as an outgrowth from the parent's organism.
2. An internal skeleton or supporting framework in an animal.
3. A growth that protrudes from a mucous membrane.
4. Protective shell and extra embryonic membranes allowing animals like reptiles, birds, and some mammals to produce out of water.
9. Lack or absence of balanced proportions between parts of a thing.
10. The body plan can be divided along a plane that splits the animals body into right and left sides that are mirror images of each other.
12. The shedding or casting off an outer layer or covering and the formation of it’s replacement.
13. An organism whose body temperature is largely determined by heat exchange with its surroundings.
15. A tough, flexible tissue that lines joints and gives structure to the nose, ear, larynx, and other parts of the body.