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In Ecosystems. Organisms tend to get phosphorus from their local ecosystem. An  organism can also get nitrogen from its local ecosystem. Nitrogen  is added to the organism's local ecosyste â¦ m by bacteria from the  air.
The sun is the primary source of energy in an ecosystem.Your backyard is an ecosystem.The health of an ecosystem is sometimes improved by human activities. japs2310qa|Points 1849|User: Which statements are true about the world's biomes?