The living component of the cell was termed by $Dujardin$ as:

Which is the smallest cell?

The term $Protoplasm$ was coined by . . . . . . .

What is the meaning of the phrase '$Omnis$ $cellula-e-cellula$'?

$A.$ Mycoplasma, the smallest cells, are only $0.3 \mu m$ in length.
$B.$ Size of bacteria could be $3$ to $5 \mu m$.
$C.$ Human red blood cells are about $7.0 \mu m$ in radius.

What was the contribution of the scientist Robert Hook in $1665$?