Mawu akuti "stratification" nthawi zina amawopsya phokoso lake lokha, kotero zimamveketsa zasayansi. Komabe, alimi onse odziwa bwino komanso othawa, wokonza minda kapena wamaluwa amatha posachedwa. Tiyeni tiwone chomwe chimapangitsa mbeu kuti ikhale yosakanikirana ndi momwe ingayendetsere bwino. Mukudziwa?
Gulu Sphagnum moss
Mtsinje wa Sphagnum ndi nthambi ya monoecious, yomwe imaimira nyemba zoyera. Amagawanika mumtsinje wa taiga, mumtunda, m'mitsinje. Mukudziwa? Chiwerengero chachikulu cha sphagnum chimakula mumadera otentha a nyengo ya kumpoto kwa dziko lapansi, kusiyana kwakukulu ku South America. Sphagnum moss - ndi chiyani? Peat moss ndi chomera chomwe chimapangidwa ndi peat.