How do hairs on your arm know when to stop growing? 658 viewsJanuary 3, 2024 Question91.84K November 1, 2020 0 Comments How do hairs on your arm know when to stop growing? In: Biology 8 Answers ActiveNewestOldest Anonymous Posted November 2, 2020 0 Comments They don’t stop growing, they fall off when then reach a certain length and a new one replaces it. Obviously you never notice because hairs don’t fall off at the same time, it would be funny if they did though. You are viewing 1 out of 8 answers, click here to view all answers. Register or Login
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