When there is little to no present in the human muscle cell, it will begin fermentation in order to release energy. a
glucose; lactic acid

b
O2; lactic acid

c
O2; ethanol

d
glucose; ethanol

b

O2; lactic acid

Explanation:

lactic acid fermentation occurs when there is not enough oxygen producing a less amount of ATP

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the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

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-lavira: )

satellites are frequently used to make observations of the orbit on earth