Which of the following is an agranulocyte?

Which test tube from the given options is $NOT$ used for keeping blood in a non-coagulated state for the analysis of blood corpuscles?

What is the meaning of diapedesis?

With regard to the $ABO$ blood typing system,if a man who has type $B$ blood and a woman who has type $O$ blood were to have children,what blood types could the children have?

Match the columns:

Column-$I$ (Blood group)	Column-$II$ (Antigen present)
$A$. $A$	$p$. $B$
$B$. $B$	$q$. $A$
$C$. $AB$	$r$. $A$ and $B$
$D$. $O$	$s$. $A, B$ and $O$
	$t$. $NIL$

Which of the following mammalian cells are not capable of metabolizing glucose aerobically into carbon dioxide?