The answer is NAD+.
In the process of glycolysis, NAD+ is reduced to form NADH+ and H+. If NAD+ is not present, glycolysis will not be able to continue. Under anaerobic conditions, the regeneration of NAD is coupled to the reduction of pyruvate. The anaerobic regeneration of NAD is called fermentation.
In animal tissues , fermentation occurs as pyruvate acts as a makeshift hydrogen acceptor and gets reduced to lactate when NADH transfers electrons to pyruvate. This enzyme catalyzed reaction occurs whenever the available oxygen has been consumed.
Because of earths magnetic field and atmosphere
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It displays the succeeding and increasing form of number while pyramid of energy displays how energy is transferred (as it reduces) from one organism to another.
10 percent rule
Food chain refers to a process cycle from producer to consumer to decomposer.
Plants – herbivores – omnivores – carnivores</span> <span>Start -> Plants -> herbivore insect -> spiders -> small bird -> Snake -> hawk -> fox -> lion -> when died the body will be eaten by hyena-> when hyena died -> body get decompose and be eaten by worms and the rest will be plant’s fertilizer.
The process of the food chain will then again takes place over and over again.</span>
The big fish population will increase because they would have a lot of small fish to eat
Certain species like the tiger that are endangered are hunted because of things like their pelts and meat of the animal are very expensive and are very rare to find therefor people kill and sell them to get alot of money.
