crossword for science

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Across
  1. 3. can be on land on and in the water
  2. 5. features structure or a form of a building
  3. 7. keys is a single key
  4. 8. are a individual plant or animal
  5. 10. classification is a formal system of naming species
Down
  1. 1. can be big and small
  2. 2. some are good and some are bad
  3. 4. a virus or fungas
  4. 6. is acode for algae fungi and plants
  5. 9. some can be mushrooms