Animal crosswprd puzzle

3. terrestrially adapted egg, characterized by a shell and extra-embryonic membranes
5. a hard supporting or protective structure (as of an insect, spider, or crustacean) on the outside of the body
8. is an individual animal or flower that has both male and female reproductive organs.
9. a symmetry in which the sides exhibit correspondence or regularity of parts around a central axis
12. strong, flexible connective tissue that protects your joints and bones.
14. organ that develops in the uterus during pregnancy.
16. buoyancy organ possessed by most bony fish.
17. having two sides or halves that are not the same
18. animal whose regulation of body temperature depends on external sources, such as sunligh
19. or occurring at the bottom of a body of water.

1. a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels
2. the milk-producing gland of women or other female mammals.
4. an animal without backbone
6. animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes
7. a small growth, usually benign and with a stalk, protruding from a mucous membrane
10. apotropaic symbol used to protect from and ward off the negative
11. the shedding or casting off of an outer layer or covering and the formation of its replacement
13. characterized by or formed with absorption of heat
15. internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
19. an asexual reproduction method in which a new organism develops from a bud of an existing organism