janeenmreed
janeenmreed janeenmreed
  • 15-03-2017
  • Biology
contestada

A researcher notices a decline in organism and population numbers over several years in a stream environment. What human activity may have affected organisms and populations in this way?

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Аноним Аноним
  • 15-03-2017
Probably over-fishing so the organisms dont have enough food to eat. 
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