Which of the following is true for all exergonic reactions?
a. the products have more total energy than the reactants.
b. the reaction proceeds with a net release of free energy.
c. some reactants will be converted to products.
d. a net input of energy from the surroundings is required for the reactions to proceed.
e. the reactions are nonspontaneous.

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos