Sexual reproduction leads to

Example of a biodegradable polymer pair is

Companion cells in plants are associated with

Which of the following complexes exhibits both geometrical and optical isomerism?

An expression of energy density is given by $u = \frac{\alpha}{\beta} \sin \left(\frac{\alpha x}{kt}\right)$,where $\alpha$ and $\beta$ are constants,$x$ is displacement,$k$ is the Boltzmann constant,and $t$ is the temperature. The dimensions of $\beta$ will be $-$

Which of the following is/are barbiturates?