Humans obtain nitrogen by eating other organisms.
Just like the bacteria, the archaea have evolved a diverse array of metabolic pathways. As extremophiles, their metabolism shows many adaptations to the extreme environments of their habitat. There are facultative and obligate anaerobes and aerobic organisms in this kingdom.
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Gregor Mendel laid the groundwork for the science of genetics by developing his Mendelian inheritance, which <span> is a type of biological inheritance.</span><span>
In Mendelian genetics, genetic characteristics that are not expressed in an organism are said to be nondominant.
</span><span>In contrast those genetic characteristics that are expressed in an organism are said to be dominant.
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