science

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Across
  1. 1. Conversion of light energy into chemical energy. (PHOTOSYNTHESIS)
  2. 4. Human's defense against diseases. (IMMUNE)
  3. 6. Determines physical features. (GENE)
  4. 7. Classification of living organisms. (GENUS)
Down
  1. 1. Complex sugar. (STARCH)
  2. 2. Pumps blood. (HEART)
  3. 3. A sequence of growth and division. (CELL)
  4. 5. Released by plants during photosynthesis. (OXYGEN)