Words of english

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Across
  1. 2. What is the fundamental unit of life?
  2. 3. the study of mammals
  3. 4. What is the process by which green plants use sunlight to synthesize foods from carbon dioxide and water?
  4. 8. What are the building blocks of proteins?
Down
  1. 1. What process do cells use to convert glucose into energy?
  2. 5. a science that deals with the change of genes and how they affect organisms
  3. 6. a living thing that is not a plant.
  4. 7. Which part of the plant is primarily responsible for absorbing water and nutrients from the soil?