Life processes

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Across
  1. 4. the mechanism by which organism of tenth oxygen from the air and release carbon
  2. 5. home, tube
  3. 6. green pigment present in plants
  4. 7. the process of releasing energy from food
Down
  1. 1. respiration take place in the presence of oxygen
  2. 2. to carry things from one place to another
  3. 3. Food nourishment
  4. 4. red coloured liquid which circulates in our body