state law of conservation of momentum

Rare of and destruction of species represent especial problems that happened [at] population level. Structure and change of community and also variety involve to represent study which [is] very inhale attention [all] expert. Last, organism population interaction with other population or with factor of abiotik give picture how nature work in managing and arranging x'self. phenomenon [of] dideskripsikan with two approach, namely balance approach and non is balance.