Biology topic 1 and 2

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Across
  1. 2. An action by an organism or part of an organism causing a change of position or place
  2. 4. To be sensitive to and respond to changes in the surroundings
  3. 5. a living thing
  4. 8. The ability to control their internal conditions
  5. 9. Production of new organism
Down
  1. 1. Increase in size and mass by increasing the number of cells.
  2. 3. the need to take in food for nutrition and energy. Plants make their own food by photosynthesis
  3. 6. surface membrane. A very thin layer of fat and protein that surrounds every living cell
  4. 7. removal of metabolic waste substances produced by chemical reactions in cells