Asexual reproduction in plants

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Across
  1. 2. Tiny structures produced by ferns and mosses for reproduction (6 letters)
  2. 3. Process where pollen reaches the stigma of a flower (11 letters)
  3. 8. A horizontal stem that grows along the ground and produces new plants, like in strawberries (6 letters)
  4. 9. The part of the pistil that receives pollen grains (6 letters)
  5. 12. Method of asexual reproduction where a new plant grows from a leaf, stem, or root (10 letters)
  6. 14. Powder-like grains produced by anthers containing male gametes (6 letters)
  7. 15. Modified underground stem that stores food and can produce new plants, like in onions (4 letters)
  8. 17. Type of reproduction that requires only one parent plant (8 letters)
  9. 18. The female reproductive part of a flower, consisting of stigma, style, and ovary (6 letters)
Down
  1. 1. Type of reproduction involving two parents and genetic variation (6 letters)
  2. 2. The male reproductive part of a flower that produces pollen (6 letters)
  3. 4. The transfer of pollen by insects, birds, or other animals (8 letters + 11 letters)
  4. 5. The swollen part of a flower that contains ovules and develops into fruit (5 letters)
  5. 6. A form of artificial reproduction where a twig is attached to another plant (8 letters)
  6. 7. Process of growing new plants from seeds (11 letters)
  7. 9. Structure that develops from a fertilized ovule and can grow into a new plant (4 letters)
  8. 10. The joining of male and female gametes in sexual reproduction (13 letters)
  9. 11. Type of pollination where pollen is carried by wind (4 letters + 11 letters)
  10. 13. Reproductive process that produces offspring genetically identical to the parent (5 letters)
  11. 16. Underground stem that can grow into a new plant, like in potatoes (5 letters)