Why are polyandrous mating systems more rare than polygynous matings?
only males are capable of multiple rounds of reproduction within a single breeding season.
only females care for the young.
females usually experience more intrasexual selection pressure than males.
females usually devote more energy to offspring production and development.

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease