MCQ
The principle function of the lymph node in the man is
- ADestruction of old $ RBC$
- BDestruction of old $WBC$
- ✓Collection and destruction of pathogens blood
- DProduction of $WBC$
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Assertion $A$ : Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason $R$ : Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below:
$Y -$ $QRS$ waves represent depolarization of atria