Biology

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Across
  1. 4. Every organism has a particular pattern of and .
  2. 6. A signal to which an organism responds
  3. 7. Living things do this over a large period of time
  4. 8. All the environments on Earth that support life
  5. 9. The study of living organisms
  6. 10. Genetic code is written in this molecule
Down
  1. 1. The combination of chemical reactions through which an organism builds up or breaks down material
  2. 2. All organisms need to maintain a stable internal environment. This condition is called .
  3. 3. When cells from two different parents unite to form a new cell
  4. 5. The way a single organism produces offspring's