Answer / Step-by-step explanation:
To answer this questions, we first try to understand and the basic terms in the narrative. This includes 
Response variable: is a variable that measures an outcome or result of a study. In summary, we can say response variable are objects that respond to various changes made during an experimentation process. 
Explanatory variable: This is a variable that practically explains the causes of changes in the response variables 
So consequentially, if we refer back to the asked question, 
EXPLANATORY VARIABLE can be likened to be = Water Temperature 
RESPONSE VARIABLE can be likened to be = Weight 
 Categorical variables places the individuals into a category, while a quantitative variable is a numerical variable. 
So consequentially, if we refer back to the asked question, 
 Water Temperature = Quantitative 
Weight = Quantitative