Animal crossword

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