Examlex
What happens when people are deprived of REM sleep? What function does REM sleep appear to serve?
Endosymbiotic Relationship
A symbiosis in which one organism lives inside the other, a relationship thought to have led to the evolution of eukaryotic cells.
Aerobic Bacterium
An aerobic bacterium is a type of bacteria that requires oxygen for its energy production and survival.
Circular Chromosome
A chromosome which forms a closed loop, found predominantly in bacteria and archaea.
Descended
The term refers to something that has originated or been derived from an ancestor or source.
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