Biology
Which statement describes decomposers?

Decomposers are insignificant organisms in the ecosystem and can be absent in some ecosystems
All listed here
Decomposers can produce their own source of energy and can sometimes act as primary producers
Decomposers are those organisms that recycle matter in the ecosystem

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Biology
A genus can best be defined as

A taxon comprised of classes
The most specific taxon
A taxon composed of one or more species and a classification level lying below family
A taxon composed of families

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