Protonephridia

Edit Answers
123456789101112131415
Across
  1. 4. External opening that releases some wastes and all excess water
  2. 9. Function of protonephridia, releases dilute fluid
  3. 10. Nitrogenous wastes can also be eliminated through the ______ cavity in protonephridia.
  4. 13. The environment of protonephridia
  5. 15. Protonephridia is found in what organism
Down
  1. 1. Nitrogenous wastes can be eliminated across thin body ______ in protonephridia
  2. 2. Second of the two actions of an excretory system that protonephridia display
  3. 3. Protonephridia is a network of _____, branching tubules
  4. 5. In a hypotonic environment, the organisms body has ___ water than the environment.
  5. 6. What reabsorbs most solutes
  6. 7. Interstitial fluid is filtered through _____.
  7. 8. Flame cells contain _____.
  8. 11. Protonephridia is the _______ filtration mechanism
  9. 12. One of two actions of an excretory system that protonephridia display
  10. 14. Action of cilia to filter interstitial fluid