Across
- 2. any so-called cold-blooded animal
- 3. the condition of having both male and female reproductive organs
- 4. one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria.
- 5. a system of vessels in echinoderms containing a circulating watery fluid that is used especially for the movement of tentacles and tube feet./clue
- 7. the property of being divisible into symmetrical halves on either side of a unique plane.
- 8. lack of equality or equivalence between parts or aspects of something; a lack of symmetry
- 9. A tough, flexible tissue that lines joints and gives structure to the nose, ears, larynx, and other parts of the body.
- 13. located in the body cavity and is derived from an out pocketing of the digestive tube
- 15. A growth that protrudes from a mucous membrane
- 16. an organ that connects the developing fetus to the uterine wall, thereby allowing nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
- 18. animals that are able to maintain a constant body temperature regardless of their ambient temperature
- 20. an internal skeleton or supporting framework in an animal.
Down
- 1. an animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate, etc
- 4. the shedding of the exoskeleton (cuticle) of the previous life stage
- 6. They have backbones, from which they derive their name.
- 10. eggs that are encased by extra-embryonic membranes
- 11. rigid or articulated envelope that supports and protects the soft tissues of certain animals.
- 12. Glandular organ located on the chest.
- 14. symmetry around a central axis, as in a starfish or a tulip flower.
- 17. a form of asexual reproduction in which a new individual develops from some generative anatomical point of the parent organism.
- 19. of, relating to, or occurring at the bottom of a body of water