For humans, lactic acid fermentation occurs when you exert yourself to the point that your muscles can no longer get oxygen fast enough to generate energy via aerobic respiration. When this happens, your muscles produce energy by the far less efficient process of lactic acid fermentation. This is also true in most other mammals In bacteria, however lactic acid fermentation can either be the normal method that a bacteria has for producing energy, or it can be a method used when there is no oxygen available. Which of these will be the case depends on the type of bacteria.
To show that both chase the american dream
Having a dog as a companion is well worth the trouble and expense.
Helping verbs<span> are </span>verbs<span> that, as their name suggests, help the main </span>verb<span> in a sentence by extending the meaning of the </span>verb<span>. They add detail to how time is conveyed in a sentence. As a result, </span>helping verbs<span> are used to create the most complicated </span>verb<span> tenses in English: the progressive and the perfect aspects.
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