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Respiration — Bio Zoology STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11Bio ZoologyRespiration1 Mark
MCQ
Each haemoglobin can combine with molecules of oxygen.
  • A
    one
  • ✓
    four
  • C
    three
  • D
    two
✓

Answer

Correct option: B.
four
four

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