Is the dg for an exergonic reaction more than or less than zero? what about an endergonic reaction? in which type of reaction do the products have more energy than the reactants? why?

answer; i believe the correct answer to the above question is ( friction)

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?