Answer: The electron transport chain consists of complexes which are the proton pump for the hydrogen ions across the mitochondrial membrane which allows the synthesis of the ATP (energy currency).
Explanation:
The electron transport chain occurs in the mitochondria. ATP synthase present in the inner mitochondrial membrane is a carrier of electron. FADH2 AND NADH two molecules supply high energy electrons from the citric acid cycle from the electron transport chain at complex I (NADH coenzyme Q reductase) and II (succinate dehydrogenase)respectively.
Im not sure but im guessing its B)
Francesco Redi, and Italian physicist disporived the theory of spontaneus generation by observing the relations between maggots and fly eggs on meat.
Though Redi firstly disporived it, the title andn credit was given to the French biologist Louis Pasteur.
Answer:

Hope it helped,
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Answer:
0.5
Explanation:
Density=mass÷volume
So the density of the mineral is 3÷6 which equals 0.5
Answer:
yes because you aren't face to face with anyone your saying it to. If you were, you might not say something like that.