Planarian Key Concepts

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Across
  1. 4. Egg-producing organs
  2. 6. Cells responsible for forming any body part
  3. 8. Process by which planaria regrow missing body parts
  4. 9. Slippery substance secreted to help it glide
  5. 11. The genus name for brown planaria
  6. 13. This type of muscle makes the worm longer when it contracts
  7. 15. These body parts sense chemicals like a “nose”
  8. 16. These worms are flat-bodied animals in the phylum Platyhelminthes
Down
  1. 1. Diffusion removes this waste gas
  2. 2. Clusters of nerve cells under the eyespots
  3. 3. Acts like a “stomach” with side pockets for digestion
  4. 5. Creatures that have both male and female reproductive organs
  5. 7. Sperm-producing organs
  6. 10. Tube used to take in food
  7. 11. The main process by which planaria get oxygen
  8. 12. Tiny hairlike structures that beat to help planaria glide
  9. 14. These accelerate chemical reactions during digestion
  10. 16. These collect wastes and push them out tiny pores