Biology invertebrates

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Across
  1. 3. -organ covered with tiny teeth that scrapes food off a food source.
  2. 6. - mollusk with a radulla (Snail&slugs) tentacles-gastropods Sensory organ with eyes
  3. 7. -excreted slimy layer that allows it to slide through soil.
  4. 9. -a Mollusk with 2 shells (clam)
  5. 10. - Organism's ability to grow back Missing or injured parts. trichinosis- infection of worms in joints & muscles from eating uncooked pork.
  6. 11. - Structure containing heart, digestive system & excretory organs
  7. 16. both male & female parts
  8. 18. - a hard layered structure made by excretion of minerals from the mantle
  9. 19. - Skin layer of mollusks that absorbs Oxygen & excretes a shell and slimy protective Coating
Down
  1. 1. flat worms have a circulatory System, pharynx, branched intestine
  2. 2. - phylum containing invertebrates with a mantle containing clams, Snails & slugs.
  3. 4. arches- sets of 8-10 hearts linhead I in tail I in middle
  4. 5. kidney structures
  5. 8. -from head all the way to tail absorption of nutrients.
  6. 12. - part of a mollusk that moves it
  7. 13. - a Mollusk with 1 shell (snail)
  8. 14. neural tissue (brain, nerves)
  9. 15. -muscular portion has Sand tereistes fond
  10. 17. -Senses light but doesn't "see"