An abnormal increase in the number of $RBCs$ in the blood is called -

  • A
    Anemia
  • B
    Polycythemia
  • C
    Leukemia
  • D
    Sarcoma

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Fibrins are formed by the conversion of inactive fibrinogens in the plasma by the enzyme........

Which organ is known as the "Graveyard of $RBCs$"?

Match the following columns:
Column-$I$ (Blood Group)Column-$II$ (Can donate blood to)
$P$. $A$$I$. $AB$
$Q$. $B$$II$. $B, AB$
$R$. $AB$$III$. $A, B, AB, O$
$S$. $O$$IV$. $A, AB$

Which salts are found in plasma? Give their functions.

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