Which statements describe electron transport chain events? two electrons pass between cytochromes through a series of redox reactions. citrate metabolism results in the formation of one fadh2 and three nadh. nadh releases two hydrogen ions and donates two electrons to coenzyme q. atp synthase uses the energy from the redox reactions to generate atp.

"a scientist studying a whale and its surroundings would need to understand the structure of atoms in case something was negatively affecting the whale or its surroundings."

explanation:

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this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.