The Plant Kingdom

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Across
  1. 3. a tree trunk is this type of stem
  2. 4. has one cotelydon
  3. 7. need 12 or more hours of darkness a day to flower
  4. 12. the plant kingdom is divided into ___ divisions
  5. 14. how nonvascular and vascular seedless plants reproduce
  6. 17. where photosynthesis happens in a leaf
  7. 19. a type of tree that stays green all year and produces cones
  8. 20. stored food in a seed
  9. 21. a type of plant that lives close to the ground to absorb water since it has no tubes
  10. 24. fern leaves
  11. 25. a hormone that helps plants ripen
  12. 26. where water enters a plant
  13. 27. gnetophyte, cycad, conifer, _________
  14. 28. has petals in multiples of 4 or 5
Down
  1. 1. a reaction where plants grow towards light
  2. 2. vascular tissue that carries food through the plant
  3. 5. what's needed to produce sexually
  4. 6. female part of a flower
  5. 7. male part of a flower
  6. 8. has seeds surrounded by fruit
  7. 9. the first plants to grow after a fire
  8. 10. has tubes to carry water and nutrients
  9. 11. waxy covering that protects a leaf ______
  10. 13. nonvascular plants: liverwort, hornwort,
  11. 15. herb for the liver
  12. 16. naked seed
  13. 18. what travels by wind, water, or animal and lands on a flower to make a seed
  14. 22. a hormone that helps plants grow faster
  15. 23. vascular tissue that carries water through the plant
  16. 24. seedless vascular plants include: horsetails, club mosses, and _______