Biology Crossword

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Across
  1. 5. substances that alters the body's function
  2. 7. microscopic prokaryotes that can cause disease
  3. 8. testosterone and estrogen are examples of this
  4. 9. the science of life and how living things interact
  5. 10. a procedure performed to test a hypothesis
Down
  1. 1. average weather conditions in a specific area
  2. 2. DNA structures that carry genetic material
  3. 3. a creature that eats meat
  4. 4. permanent change in a cell's DNA
  5. 6. the science of heredity