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Nutrients move through biotic and abiotic parts of an ecosystem. Section 2.3 Cycling of Matter. Vocabulary. Matter - anything that takes up space and has mass. Nutrient - a chemical substance that an organism must obtain to perform life processes. .
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Nutrients move through biotic and abiotic parts of an ecosystem Section 2.3 Cycling of Matter
Vocabulary Matter- anything that takes up space and has mass. Nutrient- a chemical substance that an organism must obtain to perform life processes.
How do nutrients cycle through the biosphere? • Geological processes – weathering • Biological processes - decomposers • Chemical processes - photosynthesis
The carbon cycle • Plants take in carbon dioxide and release oxygen during photosynthesis • Autotrophs and heterotrophs release carbon dioxide during cellular respiration
The nitrogen cycle Nitrogen fixation – process where bacteria make nitrogen available to plants as nitrates.
The phosphorous cycle Organisms use phosphorous to grow and develop. Phosphorous has a short term and a long term cycle. Short term is cycled from the soil to producers to consumers. Long term is cycled through deposition (rock formation) in the ocean and on land.