introduction to Science

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Across
  1. 4. a grayish or reddish granular cell that is the fundamental functional unit of nervous
  2. 6. physical material from which something is made or which has discrete existence
  3. 7. a method reconciling practical ends with scientific laws
  4. 8. any of the rod-shaped or threadlike DNA-containing structures of cellular organisms
  5. 9. the smallest particle of an element
Down
  1. 1. The definition of a protein is a substance that has amino acids
  2. 2. any of various nucleic acids that are usually the molecular basis of heredity
  3. 3. a subordinate group or organization that performs specialized functions
  4. 5. an operation to test a hypothesis and illustrate a known law
  5. 8. is the basic structural, functional, and biological unit of all known living organisms