Fungi, bacteria and many other organisms contribute to breakdown and nutrient cycling, though their roles differ. Fragmentation and chemical decomposition are related but distinct processes. The model highlights one possible return route for a nutrient atom. Its animation does not specify real decomposition time, guarantee immediate plant uptake or imply that all nutrients always remain within one local patch.
Plants, animals and ecosystems · Discover & try
How do nutrients return from dead material?
Reading level 4 of 5 · FluentChange
Word help
decomposer
An organism involved in breaking down dead organic material.
nutrient cycling
Movement and reuse of nutrient material among living and nonliving parts of a system.
Watch · Try · Explain
See how it works
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One symbolic nutrient route with compressed time; it does not turn whole leaves into one substance or recycle energy unchanged.
What to look for
- Dead material still contains nutrients
- Microbes transform organic matter
- Matter cycling differs from energy flow
Explain what you noticed
A nutrient atom from a fallen branch is later taken up by a young plant. What does that illustrate?
Keep this idea: Track material recycling separately from energy flow.
Follow the sources
- U.S. Department of Energy — DOE Explains the Plant Microbiome
- Smithsonian National Zoo — Invertebrates in Nutrient Cycling
Source material checked 2026-10-28. Explanations and activities by Nepedia. Source links do not imply endorsement.
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