crossword 1

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Across
  1. 5. the act of examining resemblances
  2. 9. the basic structure or features of a system or organization
  3. 10. an inconvenient discomfort
  4. 12. relating to a technique in which the body is entered by puncture or incision
  5. 14. a system formed by the interaction of a community of organisms with their physical environment
Down
  1. 1. located at or near the back of an animal
  2. 2. settle as a colony
  3. 3. typical or distinctive
  4. 4. something of sentimental value
  5. 6. old
  6. 7. the mechanical process of wearing or grinding something down
  7. 8. duration of service
  8. 11. a signal that temporarily stops the execution of a program so that another procedure can be carried out
  9. 13. of a medium to dark brownish yellow color