taaliyha taaliyha
  • 14-09-2020
  • Chemistry
contestada


8. In
studies, scientists do not interfere with what is going on.

Respuesta :

nooratoma20202 nooratoma20202
  • 14-09-2020

Answer:

Observational

Explanation:

This is the answer because researchers or scientist observe the effect of a  diagnostic test, treatment or other intervention without trying to change anything.

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