Answer :

Final answer:

The variable parameter in the laboratory mice experiment and the Proteus experiment may involve evaluating growth observed on the plates due to bacteria exposure.


Explanation:

The variable parameter in the laboratory mice experiment in the Proteus experiment could be the type/amount of growth observed on the plates where the mice were exposed to Proteus bacteria. This variable would help researchers assess the impact of the bacteria on the mice.


Learn more about Experimental Variables here:

https://brainly.com/question/20725701