Describe the efficiency of energy transfer between trophic levels in an ecosystem and discuss how deforestation may affect energy flow through the global ecosystem.

Life in an ecosystem often involves competition for limited resources, which occurs both within a single species and between different species. Organisms compete for food, water, sunlight, space, and mineral nutrients. These resources provide the energy for metabolic processes and the matter to make up organisms’ physical structures. Other critical factors influencing community dynamics are the components of its physical environment: a habitat’s climate (seasons, sunlight, and rainfall), elevation, and geology. These can all be important environmental variables that determine which organisms can exist within a particular area. hope this helps got it from my textbook 

Community maybe i’m not positive

Idont know but good luck; )