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substances
Mitochondria
Endosymbiont
butter
An abscess contains pus, not urine. The two are very different substances.
Apocrine Sweat Glands.
Apocrine Gland Its secretion contains proteins and other substances that favor bacterial growth.
contains enzymes and other substances
bacterias for sure. also, the mitochondrial DNA is similar to the bacterial one
ores
substances
Endosymbiont
Mitochondria
Since aluminum is a chemical element it contains no other substances.
Co2
oxygen
Cytosol