AP BIOLOGY

Detailed explanation-1: -Polyandry. Polyandry is a group with one female and many males. Polyandry is a reproductive strategy that helps a female ensure reproductive success by providing her with multiple mating options.

Detailed explanation-2: -In animals, there may be polygyny, where one male has multiple females, or polyandry, where one female has multiple males, which causes the dominant adults to have a disproportionate number of offspring. A similar type of non-random mating occurs when the sex-ratio is biased.

Detailed explanation-3: -Polyandry is when a female mates with two or more different males (the male equivalent, one male mating with multiple females, being called ‘polygyny’). Monandry on the other hand is when a female only mates with a single male.

Detailed explanation-4: -Three general mating systems, all involving innate as opposed to learned behaviors, are seen in animal populations: monogamous (monogamy), polygynous (polygyny), and polyandrous (polyandry). In monogamous systems, one male and one female are paired for at least one breeding season.

Detailed explanation-5: -Monogamy is a mating system in which a single adult male and a single adult female mate. Such pair bonds may last for a single breeding attempt, a breeding season, or many breeding seasons as in some pair-living mammals and some geese and swans.