Armaan puzzle

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Across
  1. 2. A build up immunity in a population due to natural immunity.
  2. 5. Type of sugar present in sweetness of fruits.
  3. 8. loss of Vitamin D or calcium.
  4. 11. Large, Y-shaped protein produced mainly by plasma cells of the blood,
  5. 12. A condition in which bones become brittle and fragile due to
  6. 13. Insoluble fibrous protein present in hair and nails.
Down
  1. 1. Chemical test used for detecting the presence of protein.
  2. 3. any given sample.
  3. 4. Microbes that can infect the immune system and cause illness.
  4. 6. A mixture that has the same proportions of its components
  5. 7. Profuse bleeding from ruptured blood vessels.
  6. 9. Molecule capable of causing the immune system to produce
  7. 10. by the immune system to neutralize pathogens.