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STD 12 - 7. human health and disease — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 7. human health and disease1 Mark
MCQ
Types of immunity
  • A
    $1$
  • ✓
    $2$
  • C
    $3$
  • D
    $4$
✓

Answer

Correct option: B.
$2$
b

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