A seed-bearing plant starts its growth from: the joining of egg and sperm cells
an egg cell
a sperm cell

When a sperm cell joins an egg cell, a new life is started

Osmotic pressure (Π) is given by the equation: Π=iMRT where i is the van't hoff constant, M is molarity, R is the gas constant, and T is the absolute temperature. Find the molarity of the solution, get the moles, then the molecular mass.
Molarity=moles ofsolute/L of solution
moles=mass (in g)/Molecular mass