Answer:
Evolution is a process of in a population through variation over time. Evolution involves and adapts.
Explanation:
Evolution is the bilogical term used to describe a process of change and adaptation of populations over time. Evolution often creates different species, but it can only modify an existing species as characteristics more adapted to the environment in which they reside.
Evolution is the main responsible for the bio-variety that we find on our planet and it is also a great responsible for the current life that we know.
Answer:
a. is converted to NAD+ by an enzyme called dehydrogenase
Explanation:
The electron transport chain of cellular respiration is the final step that oxidized NADH and FADH2. These reducing powers are formed during glycolysis and Kreb's cycle. Complex I of the electron transport chain present in the inner mitochondria membrane is NADH dehydrogenase. This protein complex accepts electrons from NADH and oxidizes it into NAD+. NADH dehydrogenase couples oxidation of NADH with the pumping of proton towards the intermembrane space.