je3w312z
je3w312z je3w312z
  • 02-09-2020
  • Biology
contestada

If I want to do an experiment to test whether vitamin C helps prevent colds, the control group must​

Respuesta :

thenathanswift
thenathanswift thenathanswift
  • 02-09-2020

Answer:

pee in a cup

Explanation:

right answer

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