Explain where each molecule of atp produced during aerobic cellular respiration comes from. include how nadh and fadh2 contribute to the production of atp. make sure to mention how many molecules of atp are produced by the steps in aerobic cellular respiration.

The ATP molecules are formed during aerobic respiration by both substrate level phosphorylation and oxidative phosphorylation.

Explanation:

NADH and FADH2 are the reduced from of NAD and FAD.The NADH and FADH2 enters electron transport chain where they act as electron donor and donates electron.The donated electron is transported through various electron carriers to the ultimate electron acceptor know as oxygen which is reduced to water(H2O) along with the formation of ATP .

    38 molecules of ATP  are formed by during the complete oxidation of glucose to CO2 and H2O by aerobic respiration.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

the limb fractures are among the most common fractures. open fractures are comparatively more dangerous. the injury patterns are dependent on many factors, such as the age of the person, and mechanism of the injury. the closed fractures of the limbs if left untreated may lead to a significant amount of the blood loss, which may be life-threatening for the person. approximately 1000-1500 ml of blood is lost in the close fracture of the femur, and 500-1000 ml of blood is lost in the closed fracture of lower part of the limbs.