21.YehaanVocabularyRevisionHWWS

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Across
  1. 3. The ability of an organism to prevent diseases from entering the human body.
  2. 5. Small organs that help in removing waste using urine.
  3. 6. Made immune or resistant to an infectious disease
  4. 7. An organ in the lower body of a female Mammal that helps in reproduction.
  5. 8. Use of a vaccine to develop protection from a disease.
Down
  1. 1. A bacteria that causes food poisoning in humans.
  2. 2. A disease that mainly affects children under the age of 5 and their leg muscles thereby preventing walking. It cannot be cured but can be prevented by taking a vaccine in the form of drops.
  3. 4. Metabolic process that produces chemical changes.