Arboreal mammals have:

Which of the following is incorrect for garden pea?

Fertilization of the egg takes place inside:

The set of all points for which $f(x) = x^2 \cdot e^{-x}$ strictly increases is

Two liquids $A$ and $B$ have vapour pressures in the ratio $P_A^0 : P_B^0 = 1 : 3$ at a certain temperature. If the ratio of mole fractions of $A$ to $B$ in the vapour phase is $4 : 3$,then the mole fraction of $B$ in the solution at the same temperature is

Seven white balls and three black balls are randomly arranged in a row. The probability that no two black balls are placed adjacently is