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Carbon Cycle

Carbon Cycle. Nutrient Cycles in Ecosystems — Biogeochemical Cycles. Organisms are composed of molecules and atoms that are cycled between living and non-living portions of an ecosystem. These nutrient cycles are called biogeochemical cycles. Carbon Cycle.

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Carbon Cycle

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  1. Carbon Cycle

  2. Nutrient Cycles in Ecosystems—Biogeochemical Cycles • Organisms are composed of molecules and atoms that are cycled between living and non-living portions of an ecosystem. • These nutrient cycles are called biogeochemical cycles.

  3. Carbon Cycle • Carbon and oxygen combine to form carbon dioxide. • Plants use carbon dioxide during photosynthesis to produce sugars. • Plants use sugars for plant growth. • Herbivores eat plants, break down the complex organic molecules into simpler molecular building blocks, and incorporate those molecules into their structure. • Respiration breaks down organic molecules into CO2 and water and releases those compounds back into the atmosphere.

  4. Carbon Cycle • The decay process of decomposers involves respiration and therefore recycles naturally occurring organic molecules. • Burning fossil fuels takes carbon atoms that were removed temporarily from the active, short-term carbon cycle and reintroduces them into the active cycle.

  5. Carbon Cycle Carbon cycle

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