Crossword Puzzle

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Across
  1. 2. - Smallest unit of matter
  2. 4. - Powerhouse of the cell, where energy is produced
  3. 5. - Biological catalyst that speeds up chemical reactions in living organisms
  4. 8. - Community of organisms interacting with each other and their environment
  5. 9. - Proposed explanation based on limited evidence
  6. 10. - Use of living systems and organisms to develop or make products
Down
  1. 1. - Process by which green plants and some other organisms use sunlight to synthesize foods
  2. 3. - Molecule that carries the genetic instructions for growth, development, functioning, and reproduction in all known living organisms
  3. 6. - Electrically neutral subatomic particle found in the nucleus of an atom
  4. 7. - Study of genes, heredity, and variation in living organisms