kpblueyes kpblueyes
  • 25-10-2016
  • Biology
contestada

During a controlled experiment, a scientist isolates and tests
A. a conclusion.
B. a mass of information.
C. a control group.
D. a single variable

Respuesta :

cookiemonstah20
cookiemonstah20 cookiemonstah20
  • 25-10-2016
it is D. a single variable
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