Biology 11 Crossword

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Across
  1. 2. Body stationary or sessile form which attaches at the base and points its tentacles upwards
  2. 4. Head of an adult tapeworm; can contain suckers or hooks
  3. 5. Terminal part of the leg of man or animal
  4. 6. Tendancy in the development of animals to localization of important organs or parts in or near the head
  5. 9. Band of glandular tissue in earthworm that secretes a viscid sac in which the eggs are deposited
  6. 12. The division of some animal and plant body plans into a series of repetitive segments
  7. 14. Prominent terminal projection, especially of a carpel or fruit
  8. 15. Include jellyfish, hydra, coral; Means "stinging creature"
  9. 16. A covering or vestment
  10. 18. Most notable feature of cnidarians which contain a coiled thread and a barb for stinging and paralyzing prey\
  11. 19. The body cavity of higher metozoans, between the body wall and intestine, lines with a mesodermal epithelium
  12. 20. Spike shaped structure that makes up the skeletons of harder sponges
Down
  1. 1. Opening of the archenteron in the gastrula, develops into the mouth in protosomes
  2. 3. The unfold and spread out of the wings
  3. 6. Specialized cell in spnges that uses a flagellum to move a steady amount of water through the sponge
  4. 7. One member of a series of paired curved blood vessels that arise in the embryo from the ventral cortex, pass around the pharynx.
  5. 8. Specialized cell in a sponge that makes spicules
  6. 10. Stinging structure within each cnidocyte of a cnidarian
  7. 11. Ribbon-shaped segmented worms which inhabit the intestinal tract of many vertebrates
  8. 13. Motile stage of the life cycle of a cnidarian that has a bell-shaped body
  9. 17. Group of archaeocytes surrounded by a tough layer of spicules; produced by some sponges
  10. 20. A stiff hair' bristle or bristle like part