Mrs Gren-Biology Mrs Gren

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Across
  1. 3. When waste products are ejected from the body
  2. 5. Multiplying a species
  3. 6. A necessary element for survival
Down
  1. 1. Necessary to get from A to B
  2. 2. Necessary to understand whats happening and location
  3. 4. An expansion of an organism or elemant
  4. 5. The transformation of oxygen to carbon dioxide