The microbes form genetic clusters and ecological clusters. 這些物種由遺傳及生態(tài)群叢組成。
Viewing a biological association as a system has at least two advantages. 把一個(gè)生物群叢作為一個(gè)系統來(lái)看到至少有兩個(gè)好處。
The appearance of the ecological community can vary depending on the time of year. 生態(tài)群落的形態(tài)可能會(huì )根據一年之內時(shí)間的不同而變化。
But most ecological communities stumble along into a mongrel mixture of species that offers no outstanding self-protection to the group as a team. 但是大多數生態(tài)群落跌跌撞撞地發(fā)展出的雜交混合物種，并未作為一個(gè)團體給群落提供突出的自衛能力。
