D2L Marine Biology

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Across
  1. 3. Bladder located in the body cavity and is derived from an outpocketing of the digestive tube
  2. 9. An animal without a backbone
  3. 10. Symmetry a form of symmetry in which the opposite sides are similar.
  4. 11. lack or absence of symmetry
  5. 15. one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria
  6. 20. warm-blooded animals.
  7. 21. a skeleton that is on the inside of a body, like humans, dogs, or some fish.
Down
  1. 1. a non-vascular type of supporting connective tissue that is found throughout the body
  2. 2. Eggs eggs that are encased by extra-embryonic membranes
  3. 4. animals that possess a vertebral column and/or notochord at any point in their lives
  4. 5. Vascular System a system of vessels in echinoderms containing a circulating watery fluid that is used especially for the movement of tentacles and tube feet.
  5. 6. an organism (plant or animal) having both male and female reproductive
  6. 7. any so-called cold-blooded animal
  7. 8. the shedding or casting off of an outer layer or covering and the formation of its replacement.
  8. 12. Glands milk-producing gland of female mammals.
  9. 13. 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.
  10. 14. an asexual reproduction method in which a new organism develops from a bud of an existing organism.
  11. 16. rigid or articulated envelope that supports and protects the soft tissues of certain animals.
  12. 17. of, relating to, or occurring at the bottom of a body of water.
  13. 18. symmetry in which the sides exhibit correspondence or regularity of parts around a central axis.
  14. 19. a projecting mass of swollen and hypertrophied or tumorous membrane