Which scientist proposed the theory of continuity of germplasm?

The work done by a force $\vec F = (-6x^3 \hat i) \, N$,in displacing a particle from $x = 4 \, m$ to $x = -2 \, m$ is ................ $J$.

Magnifying power of a simple microscope is (when final image is formed at $D = 25 \ cm$ from eye)

The value of $\cos ^{-1} \left[ \cot \left\{ \sin ^{-1} \sqrt{\frac{2-\sqrt{3}}{4}} + \cos ^{-1} \frac{\sqrt{12}}{4} + \sec ^{-1} \sqrt{2} \right\} \right]$ is

What is $Anthoceros$?

Which organelle of the cell is responsible for the synthesis of steroids?