Which of the following is an exergonic reaction? The conversion of one glucose molecule to two pyruvate molecules by glycolysis
The formation of ATP from ADP and Pi
The movement of a proton from the mitochondrial matrix to the intermembrane space
The transfer of electrons from O2 to NADH

The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?