Essay

Questions 10-19 Social parasitism involves one species relying on another(prenominal) to raise its young. Among vertebrates, the better cognize social parasites are such birds as cuckoos and cowbirds; the female soul lays an egg in a draw near be 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 droll way of ants belonging to the genus Polyergus. All species of this ant have helpless the talent to care for themselves. The workers do not forage for pabulum, hang their worry or queen, or even dean their take nest. To catch up with for these deficits, Polyergus has become specialized at obtaining workers fr om the related genus genus genus Formica to do these chores.

???????????????????????????????????????????????????????????? ??????????????????????????? Polyergus ???????????????????????????????????????????????????????????? ??? ???????????????????????????????????????????????????????????? ????????????????????????????????????????????? Polyergus ????????????????????????????????????????????? Formica ????????? In a raid, several thousand Polyergus workers provide travel up to 500 feet in search of a Formica nest, cross it, drive off the queen and stage workers, capture the portentous brood, and transport it back to their nest. The captured brood is past reared by the hous! e physician Formica workers until the developing pupae leave 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 upstart chambers as the population increases. ????? Polyergus ??????????????????????500 ??????????????????? Formica...If you compliments to get a full essay, order it on our website: BestEssayCheap.com

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