Examlex
The order of compounds in the conversion of glucose to pyruvic acid is as follows: (PEP = phosphoenolpyruvate)
Quaternary
The most recent geological period, starting 2.58 million years ago and continuing to the present, characterized by ice ages and significant human evolution and development.
Extinction
The elimination of a species; occurs when the last individual member of a species dies; see background extinction and mass extinction.
Autotrophs
Organisms that produce their own food using light, water, carbon dioxide, or other chemicals.
Cyanobacteria
Photosynthetic microorganisms, also known as blue-green algae, that contribute significantly to the Earth's oxygen production.
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