7m + 19 would be the simplified answer
Hope this helps
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Pasteurizing milk involves exposing milk to high temperatures for a short period of time to destroy all harmful bacteria that might be lurking in the milk. It is beneficial as it kills most harmful bacteria.
The Taxonomic rank ( from the largest to the smallest) goes something like this:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
So, the largest from your given options is phylum.
Hope this answered your question
Cellular organelles are the internal organs of a cell. They are responsible for keeping the cell alive. They do this by bringing in food for the cell, getting rid of waste, protecting and repairing the cell, and helping it grow/reproduce.