7th World History Final Exam- MS

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Across
  1. 2. trees and shrubs that shed their leaves at the end of the growing season
  2. 4. middle layer of leaf where majority of photosynthesis occurs
  3. 9. true bacteria
  4. 10. leaves of ferns
  5. 15. reduce water loss by slowing evaporation
  6. 17. dependent on insects as food
  7. 18. largest group of algae
  8. 20. includes diatoms
  9. 21. stalk that attaches leaf to stem
  10. 22. the alternating patterns in a woody stem consisting of distinct layers of spring wood and summer wood
  11. 24. study of plants
  12. 25. multicellular; cellulose cell walls; undergo photosynthesis
  13. 26. includes pear, apple, cherry, and peach
Down
  1. 1. the green portion of a leaf
  2. 3. opening in the leaf
  3. 5. protects and covers the leaf
  4. 6. also called legumes
  5. 7. large, central vein of the leaf
  6. 8. includes algae that are the sources of carrageenan and agar
  7. 11. green algae used in biological laboratories
  8. 12. the study of body function
  9. 13. the study of animals
  10. 14. an organism that feeds on a living host
  11. 16. place where an organism lives
  12. 19. the study of body structure
  13. 23. group of trees produces winged fruits