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O Level Biology App's Tests

O Level Biology e-Book's MCQs - Complete

Biology Tests Online App Quiz & e-Book Download - 1726

MCQ:

Lack of ascorbic acid causes

  1. tooth decay
  2. demineralization of bones
  3. calcification of soft tissues
  4. poor healing of wounds

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Biology Tests Online App (Android & iOS)

Biology Tests Online App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

10th Grade Biology App (Android & iOS)

10th Grade Biology App (Android & iOS)

SAT Biology App (Android & iOS)

SAT Biology App (iOS & Android)