Class 9 Biology MCQs (Grade 9) From Textbook

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Class 9 Biology MCQs – Certification Test 257

Role of Calcium and Iron Trivia (Question 257) – App & e-Book Download

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MCQ: 257

The iron is component of hemoglobin in

  1. red blood cells
  2. white blood cells
  3. muscle cells
  4. ligament cells

Role of Calcium and Iron Competitive Exam – Class 9 Biology App & e-Book Trivia

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