Distinguish between monogamy and polygamy; between polygyny and polyandry.

Monogamy is a relationship or marriage pattern in which an individual has only one partner at a time. This form of relationship is based on the idea that a person is romantically or sexually involved with just one person for an extended period or even for a lifetime.

Polygamy, on the other hand, is a relationship or marriage pattern in which an individual has multiple partners at the same time. This practice can be further divided into two subcategories: polygyny and polyandry.

Polygyny is a type of polygamy in which a man has multiple wives at the same time. In some cultures, this practice is socially acceptable and even encouraged. The man is considered the head of the family, and his wives are often expected to collaborate and work together in maintaining the household.

Polyandry is the other subcategory of polygamy and refers to a relationship or marriage pattern in which a woman has multiple husbands at the same time. This practice is rarer compared to polygyny and is found in a few cultures around the world, primarily in some areas of Nepal, Tibet, and India. In these societies, the reasoning behind this practice could be related to resource scarcity, controlling population growth, or other cultural and social reasons. In summary, the key differences between these concepts are: - Monogamy refers to having only one partner at a time, while polygamy refers to having multiple partners at the same time. - Polygamy can be divided into two categories: polygyny (one man with multiple wives) and polyandry (one woman with multiple husbands).