What is the cause of embryo formation from pollen grains in tissue culture medium?

If $\int \frac{d x}{\sqrt{\sin ^3 x \cos x}}=g(x)+c$,then $g(x)$ is equal to

The incentre of the triangle formed by the lines $x+y=1$,$x=1$,and $y=1$ is

The group of chemicals used as pesticides is

Olfactoreceptors are:

If $\alpha, \beta$ and $\gamma$ are the roots of the equation $x^3+p x^2+q x+r=0$,then the coefficient of $x$ in the cubic equation whose roots are $\alpha(\beta+\gamma), \beta(\gamma+\alpha)$ and $\gamma(\alpha+\beta)$ is