Answer :
Final answer:
The study is an experiment where the type of drink is the response variable.
Explanation:
An experiment where the type of drink is the response variable. In this study, the independent variable is the type of drink given - matcha tea or placebo. The response variable is the level of depression measured in the mice. By providing either matcha tea or a placebo beverage and observing the impact on depression levels, the study falls under the category of an experiment.
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