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1. In the air. Carbon dioxide in the air is used by producers during photosynthesis.
2. In producers. Plants, algae, and some bacteria make carbon compounds like glucose to use as energy.
3. In consumers. Heterotrophs like animals, fungi, most bacteria, protozoa and some others get their carbon compounds from their food. Carbon compounds include the proteins, carbohydrates, lipids, and nuclei acids that make up cells and operate the cells.

2007-04-11 16:14:22 · answer #1 · answered by ecolink 7 · 0 0

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