When the producks of a reaction have more energy then the reactants:
select that apply
a. the reaction is exothermic
b. the reaction is endotheromic
c. the reactions gave up energy
d. the ^h is positive

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area