how does the energy of the reactants and products differ between an energy absorbing reaction and an energy releasing reaction?

Why is excretion necessary to maintain homeostasis?

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.

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.