Bro im jus gonna be straight up w you i want to help you but i cant becuase i have no idea what that is
Answer:
NK cells<em><u> perform all of these roles</u></em>
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hope this helps
-lvr
What percent of potassium-40 remains undecayed in a rock that is 3.9 billion years old? The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.
