Osteoprogenitor and osteogenic good luck
Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos and topos, meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.
Answer:
When the flea bit someone, the <u><em>plague bacteria</em></u> would get transferred to that person.
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