Essay

Questions 10-19 Social parasitism involves one species relying on another(prenominal) to raise its young. Among vertebrates, the better know social parasites are such birds as cuckoos and cowbirds; the female psyche lays an egg in a draw near belong to another species and leaves it for the host to rear. ???????????????????????????????????????????????????????????? ????????????????????? ???????????????????????????????????????????????????????????? ??????? ???? ????????? ??? ??... ???????????????????????????????????????????????????????????? ????????? The dulotic species of ants, however, are the supreme social parasites. Consider, for example, the strange way of ants belonging to the genus Polyergus. All species of this ant have illogical the talent to care for themselves. The workers do not forage for aliment, raven their worry or queen, or even dean their ingest nest. To catch up with for these deficits, Polyergus has become specialized at obtaining work ers from the related genus genus genus Formica to do these chores.

???????????????????????????????????????????????????????????? ??????????????????????????? Polyergus ???????????????????????????????????????????????????????????? ??? ???????????????????????????????????????????????????????????? ????????????????????????????????????????????? Polyergus ????????????????????????????????????????????? Formica ????????? In a raid, several thousand Polyergus workers will travel up to 500 feet in search of a Formica nest, cross it, drive off the queen and grade workers, capture the portentous brood, and transport it back to their nest. The captured brood is accordingly reared by the h ouse physician Formica workers until the dev! eloping pupae come out of the closet to add to the Formica population, which maintains the mixed-species nest The Formica workers forage for food and give it to colony members of both(prenominal) species. They also remove wastes and excavate young chambers as the population increases. ????? Polyergus ??????????????????????500 ??????????????????? Formica...If you lack to get a full essay, order it on our website: OrderEssay.net

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