MCQ
Birds fly with the help of
- APatagium
- ✓Wing
- CFeather
- DLimbs
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$I$. Lymph node $II$. Thymus gland
$III$. Red bone marrow $IV$. liver
$V$. Spleen $VI$. Osteocytes
$VII$. Peyer's patches
The correct option with correct choices is
$A.$ Periodic abstinence
$B.$ Withdrawal
$C.$ Coitus interruptus
$D.$ Lactational amenorrhoea