Questions: is the step in cellular respiration that does not appear to have changed for more than 2 billion years.

is the step in cellular respiration that does not appear to have changed for more than 2 billion years.
Transcript text: is the step in cellular respiration that does not appear to have changed for more than 2 billion years.
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The answer is glycolysis.

Glycolysis is the step in cellular respiration that is considered to be one of the most ancient and conserved metabolic pathways. It occurs in the cytoplasm of cells and does not require oxygen, making it a fundamental process for energy production in both aerobic and anaerobic organisms. This pathway has remained largely unchanged for over 2 billion years, indicating its essential role in cellular metabolism across diverse life forms.

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