The answer to the very question you are asking is "plants"
<u>Taxonomy</u>
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<em>Explanation:</em>
Taxonomy is contained within a larger branch of biology called <u>systematics</u>. Systematics is concerned with the evolution and relatedness of organisms, <u>as well as the classifications.</u>
Viruses conduct cellular respiration
There are 20 different types of amino acids found in proteins.