In the first half of the citric acid cycle, is oxidized, yielding a pair of electrons that reduce a molecule of NAD to NADH.

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids