Biology Crossword Puzzle 1

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Across
  1. 4. - What plants need magnesium for.
  2. 7. - Process used by protists to engulf food.
  3. 8. - Organisms like mosquitoes that feed on liquids.
  4. 9. - These are used by grasshoppers to chew grass.
  5. 11. - A small parasite.
  6. 14. - Evolutionary trend in nutrition methods over time.
  7. 15. - A saprophyte that decomposes organic matter.
  8. 17. - Makes plant material difficult to digest.
  9. 19. - These help herbivorous mammals digest plant material.
  10. 20. - This animal lacks teeth but has a gizzard.
Down
  1. 1. - Absorbs nutrients directly from the host, lacking its own digestive system.
  2. 2. - Gut adaptation for continuous digestion and waste removal.
  3. 3. - A large gulper of food.
  4. 5. - A fierce predator.
  5. 6. - Organism with a gastrovascular cavity.
  6. 10. - These in the gut allow different digestive processes to occur simultaneously.
  7. 12. - A common grazer.
  8. 13. - Fungi structures that aid in external digestion.
  9. 16. - Birds use this to grind food since they lack teeth.
  10. 18. - Tiny openings in leaves for CO2 intake.