Beschreibung
Themen: Layers in a forestSeasonal changes (abiotic factors)Ecological pyramids (and nutrient cycle / transfer of energy)Feeding relationships (and competition / ecological niche / trophic levels)Life on the forest floor (incl. social life in an anthill)Survey of common coniferous and broad-leaved treesFunction and preservation of forestsAußerdem im Anhang: Vokabellisten
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