Plant germination

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Across
  1. 3. they are in your body
  2. 5. something that a plant breaths out
  3. 8. the thing at the top of the plant
  4. 9. it is very hot and it also helps a plant grow
  5. 10. something that helps a plant grow
Down
  1. 1. if you have dirty hands and you touch a plant that is?
  2. 2. what a plant starts off as
  3. 4. it sucks up the water that it needs
  4. 6. the plant is nominally this colour
  5. 7. a pretty thing that sometimes grows on plants