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Circulatory System — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyCirculatory System1 Mark
MCQ
Both erythrocytes and leucocytes form in the _________
  • ✓
    bone marrow
  • B
    thymus
  • C
    tonsil
  • D
    lymphnode
✓

Answer

Correct option: A.
bone marrow
Both erythrocytes and leucocytes form in the bone marrow

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