Porifera Crossword Puzzle

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Across
  1. 2. (Pinacocyte)-the thin, flattened cells of the epidermis, the sponge's outer layer of cells. porocyte. cells with pores that allow water into the sponge; they are located all over the sponge's body.
  2. 4. of the flagellated cells in sponges that maintain a flow of water through the body.
  3. 6. (singular ostium)-An opening; a passage. An opening in organic sponges that allow water to enter the organism.
  4. 7. sponge or sponge larva having a complex structure in which the flagellated layer is restricted to numerous small interstitial chambers intercalated between the incurrent and excurrent canals and the paragaster is reduced or lacking — compare ascon, sycon.
  5. 8. directly by the base : not raised upon a stalk or peduncle
  6. 10. (Mesenchyme)- the gelatinous matrix within a sponge.
  7. 11. small bud: a : a theoretical particle proposed in the theory of pangenesis that is shed by a somatic cell and contains all the information necessary to reproduce that cell type (as in an offspring)
  8. 13. of the large tubular cells that constitute the wall of the incurrent canals in some sponges.
Down
  1. 1. sponge of a grade of structure of the simplest type, in the form of a tube or bag lined with choanocytes.
  2. 3. a scleroprotein that is the chief constituent of flexible fibers found in certain sponge skeletons.
  3. 5. slender pointed usually hard body especially
  4. 6. excretory structure in the living sponge
  5. 9. mobile cell (moving like an amoeba) in the body of invertebrates
  6. 12. a genus of calcareous sponges belonging to the family Sycettidae.