Plant survival

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Across
  1. 2. is a territorial division established for various, case-specific purposes (2 words)
  2. 6. a serious disease that is caused when cells in the body grow in a way that is uncontrolled and not normal
  3. 8. strong enough to get better quickly after damage, illness, shock, etc (adj)
  4. 10. to grow or develop well (v)
  5. 11. something that causes a lot of harm or damage
  6. 12. to grow very well, or to become very healthy or successful (adj)
Down
  1. 1. not harmed or affected by something (adj)
  2. 3. something is dirty or poisonous
  3. 4. is a power station in which the heat source is a nuclear reactor(2 words)
  4. 5. to become healthy or happy again after an illness, injury, or period of sadness (v)
  5. 7. e.g. an area that has a lot of healthy grass, plants, or trees (adj)
  6. 9. a group of cells in someone's body that are not growing normally