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The study of how living organisms interact with each other and with their environment.

Ecosystem = a natural unit of biotic components in a given area, as well as the abiotic factors with which
they interact. An ecosystem is major ecological unit.

Population= a group of organisms of a…

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Energy flow through the ecosystem

Ecological energetics= the study of the flow of energy through the ecosystem
Energy from the sun
o Enters food chain at the producer level during photosynthesis
o Is the source of energy for the ecosystem
o Is passed from one trophic level to another through…


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