In the last step of extracting energy from sugar, an enzyme called cytochrome c oxidase attaches electrons to oxygen and hydrogen ions, forming water. the electrons are temporarily bound to an iron atom in the enzyme before they are attached to oxygen. cyanide is a poison that acts by permanently binding to the enzyme near this iron atom, preventing oxygen from getting near enough to accept the electrons. how would you describe the action of cyanide?

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.