B4g Decay- Summary Sheet This cards help you to revise on the key information needed for B4g 5.0 / 5 based on 10 ratings ? ScienceBiologyGCSEOCR Created by: AmiraCreated on: 23-05-12 14:10 Process of Decay Materials that can decay can be recycled. Key factors in the process of decay: presence of micro-organisms temperatue oxygen moisture The effects of chnging temperature and the amounts of oxygen and water on the rate of decay: effect on microbial respiration effet on growth and reproduction of micro-organisms Detritivores feed on dead and decaying material (detrius): earthworms, maggots, woodlice. Detritivores increase the rate of decay: poduce larger surface area Saprophyte- rganisms which obtain nutrients from dead organic matter. Explain that decay involves saprophytic nutrition by bacteria and fungi. State that micro-oraginsms are used to: break down human waste break down plant waste 1 of 1
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