Zebras and wildebeest compete for food on the Serengeti Plain. If Z and W represent the zebra and wildebeest population sizes, the equations representing the population dynamics might be

France played a key role in the american revolutionary war (american war of independence; 1775–1783). motivated by the ideals of the new nation which were inspired by the french enlightenment, as well as its long-term rivalry with britain and so as to avenge their territorial losses during the french and indian war, france secretly began sending supplies to the americans in 1775.