What 3 conditions do microrganicisms need to decay material?
Warm, moist and aereated
1 of 6
Explain how elements inside an organism return to the environment
When the organism dies, its body decays, and so the elements return to the environment
2 of 6
What are detritivores and what process do they carry out?
Organisms that eat dead material (e.g. Maggots, Earthworms) and digest it, and when they excrete waste they give a bigger surface area for decomposers to work on
3 of 6
What are decomposers?
Bacteria and fungi that break up waste at a cellular level, and then return the nutrients to the environment
4 of 6
When Alex mows his lawn, he sweeps up the cuttings. Is this a stable community?
No
5 of 6
What could he do to make this a stable community?
He could leave the cuttings on the lawn to decay
6 of 6
Other cards in this set
Card 2
Front
Explain how elements inside an organism return to the environment
Back
When the organism dies, its body decays, and so the elements return to the environment
Card 3
Front
What are detritivores and what process do they carry out?
Back
Card 4
Front
What are decomposers?
Back
Card 5
Front
When Alex mows his lawn, he sweeps up the cuttings. Is this a stable community?
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