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In an experiment investigating the time needed to kill a certain type of bacteria at 100°, which of the following variables need to be controlled?

time only

temperature and type of bacteria only

temperature only

time and temperature only

Respuesta :

mickymike92

Baed on the nature if the investigation, the temperature and type of bacteria need to be controlled in this experiment.

What are variables in an experiment?

Variables are quantities whose values determine the result or can affect an experiment.

Variables may either be:

  • dependent variable
  • independent variable
  • constant variable

Since the experiment is investigating the time needed to kill a certain type of bacteria at 100°, the temperature and type of bacteria need to be controlled.

Learn more about variables at: https://brainly.com/question/347133

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