Each category of taxonomic hierarchy is referred to as a unit of . . . . . . .

The longest phase of meiosis is ........

The coefficient of $x^3 y^4 z^5$ in the expansion of $(x y+y z+x z)^6$ is

$A$ current of $5 ~A$ is flowing at $220 ~V$ in the primary coil of a transformer. If the voltage produced in the secondary coil is $2200 ~V$ and $50 \%$ of power is lost,then the current in the secondary coil will be: (in $~A$)

What are the first ionization potentials $(eV)$ of $Be$ and $Ba$ respectively?

The angle between the lines represented by $y^2 \sin^2 \theta - xy \sin^2 \theta + x^2(\cos^2 \theta - 1) = 0$ is