PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • E ??? ??? ??? 37) A secondary consumer, such as a fox, receives what percent of the energy fixed by primary producers in a typical field ecosystem?
http://www.w3.org/ns/prov#wasQuotedFrom
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