structure of matter

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Across
  1. 2. the plant from which a parasite gets its food
  2. 4. the process of taking in food by an organism and it's utilization by the body is called_____
  3. 6. the smallest particle of an element or compound that can normally exist independently
  4. 8. carbon-dioxide + water in the presence of chlorophyll and sunlight = glucose = oxygen
  5. 10. a measure of the combining capacity of an element or a group
Down
  1. 1. numerous green structures in plants
  2. 3. the number of atoms present in a molecule of an element
  3. 5. it is always contains the same elements chemically combined together in a fixed ratio
  4. 7. the smallest particle of an element that can take part in chemical reaction
  5. 9. it is used to represent an element