Oki so, a beta is like the lowest and most common of the population, the cant smell pheromones or go into "rut"
a omega is in the middle, i guess there is a fair amount idk lol, they do go into heat and they can smell pheromones
an alpha is the most highest and rarest of the population, they go into rut, give off pheromones and are most likely to be rich and sh** :p
i may not have the best explanation but yeah 