What is ecology?;Ecology is the study of interactions ;Ecology What is biotic/abiotic?;Biotic describes living things, abiotic is non-living things. ;Ecology How do yo know if two organisms are of the same specie?;They can reproduce with each other, interbreed, produce fertile offspring ;Ecology What are individual interactions?;Survival and reproduction, the unit of natural selection ;Ecology What are population interactions?;Population dynamics, the unit of evolution ;Ecology What are community interactions?;Interactions among species ;Ecology What are ecosystem interactions?;Flow of energy and matter ;Ecology What are biosphere interactions?;Global processes ;Ecology