Plant Evolution and Structures

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Across
  1. 4. 2n; diploid
  2. 7. cell structures for gas exchange, made of guard cells
  3. 9. root modification shown in iris plants
  4. 11. dead vessels that transport water
  5. 13. fine, hair-like projections
  6. 14. scientists use these records to help classify plants
  7. 17. use basic transport
  8. 19. seed leaf
  9. 20. physical traits used for classification
  10. 22. ferns, horsetails & club mosses
  11. 23. fuses with another to form a diploid zygote
  12. 26. tissue near tips of roots and shoots, growth site
  13. 27. have flowers, fruit, and encased seeds
  14. 28. produce both male and female cones
  15. 29. forests of seedless, vascular plants (360-300 mya)
  16. 30. hair-like, act as anchors, absorb H2O & minerals
  17. 32. covers and protects the plant, gas exchange, water and ion uptake
  18. 34. metabolism, storage, and support activities
  19. 36. support plant, absorbs water and minerals
  20. 37. growth that has no set limit
Down
  1. 1. cannot reproduce & expand their habitat without water
  2. 2. plants make their own food and sustain life in terrestrial habits b/c they are _ producers
  3. 3. a diagram used to show classification: _ tree
  4. 5. modified branches for defense
  5. 6. living cells, mainly functions in photosynthesis, food & water storage
  6. 8. cork, cork cambium, phelloderm
  7. 10. angiosperms adapt with their pollinators
  8. 12. carbohydrate structure that gives strength
  9. 15. vegetative and reproductive parts of the plant
  10. 16. the node, internode, and petiole are parts of the _
  11. 18. plant cell walls are made of _
  12. 21. have naked seeds
  13. 24. makes own food through photosynthesis
  14. 25. twining strands, supports plant by climbing
  15. 31. aerial roots
  16. 33. protective barrier formed by lipid polymer & waxes
  17. 35. increase surface area (2 words)