biology

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Across
  1. 3. a complex organic substance present in living cells
  2. 4. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus
  3. 5. the hereditary material in humans and almost all other organisms.
  4. 6. a blood protein produced in response to and counteracting a specific antigen
  5. 8. an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat.
  6. 9. specific microscopic organisms are the cause of specific diseases.
  7. 10. a nucleic acid present in all living cells that has structural similarities to DNA.
Down
  1. 1. a microscopic organism
  2. 2. a simple, safe, and effective way of protecting you against harmful diseases
  3. 7. microscopic living organisms that have only one cell.