Reproduction in Plants

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Across
  1. 2. Non-flowering plants reproduce from __________.
  2. 4. Fruits and seeds dispersed by __________ are dry, light, small, have wing-like structure or parachute-like structures.
  3. 7. After fertilisation, the ovary will become the __________.
  4. 9. The young plant uses food stored in the seed _________ for energy.
  5. 11. __________ produces pollen grains.
  6. 14. Overcrowding can lead to __________ for light, water, nutrients and space.
  7. 15. Wind pollinated flowers have stigmas that are __________ in order to catch pollen grains in the air.
  8. 16. Fruits and seeds dispersed by __________ have waterproof outer layer or fibrous husks to help stay afloat in water.
  9. 18. Seeds need to be dispersed to prevent ________.
  10. 21. __________ receives pollen grains.
  11. 23. __________ occurs when pollen grains are transferred from the anther to the stigma.
  12. 24. Fruits and seeds dispersed by _________ are juicy, fragrant, sweet or brightly coloured, hard seeds, hooks or stiff hair.
  13. 25. Fruits and seeds dispersed by __________ have fruit walls that split open with a sudden force when ripe, shooting the seeds out in different directions.
Down
  1. 1. __________ is the process where the male reproductive cell fuses with a female reproductive cell.
  2. 2. Flowering plants reproduce from __________.
  3. 3. Seeds need _________ conditions to develop. (water, oxygen, warmth)
  4. 5. __________ becomes the seed after fertilisation has taken place.
  5. 6. Wind pollinated flowers are usually small, __________ coloured with no scent.
  6. 7. When the __________ leaves of the shoot are formed, the young plant can carry out photosynthesis to make its own food.
  7. 8. Insect pollinated flowers have stigmas that are __________ in order to catch pollen grains.
  8. 10. __________ connects the stigma to the ovary.
  9. 12. The __________ appears first, then the shoot.
  10. 13. __________ holds the anther up.
  11. 17. Wind pollinated flowers have anther and stigma that __________ over the petals.
  12. 19. __________ protects the ovule and becomes the fruit after fertilisation has taken place.
  13. 20. Insect pollinated flowers are usually large, __________ coloured and scented.
  14. 21. After fertilisation, the ovule will become the __________.
  15. 22. ___________ is the development of a plant from a seed.