Which term refers to water's attraction to different substances?

What happens during the experiment stage of the scientific method

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.

Which factor most likely caused animals and plants in india to differ greatly from species in nearby southeast asia?