<span>Eukaryote is an organism whose cells have all the organelles enclosed in a "cell membrane".</span>
Nerves send the messages that make muscles move
<span>utilization of food molecules and energy in life processes ---fermintation assmilation
</span>occurring on the presence of oxygen--aerobic
<span>occurring in the absence of oxygen ----anaerobic
</span><span>the stage of respiration that occurs in anaerobic conditions—for example, yeast ----fermentation
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