Chapter 2

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Across
  1. 2. cell specialized to receive and transmit info
  2. 7. organism’s observable physical characteristics
  3. 8. created Natural selection theory
  4. 9. organism’s genetic makeup
  5. 10. complete set of genetic info within a cell
Down
  1. 1. carry messages between nerve cells
  2. 3. enables reasoning, planning, creating
  3. 4. science of hoe brain produces mental process
  4. 5. involved in establishing long-term memories
  5. 6. functional units of a chromosome