इन मेजॉरिटी ऑफ द एनजीओ स्पर्म मेकस वॉइस फंक्शनल
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Answer:
सामान्य तरीके से बच्चा होने के लिए प्रति एमएल कम से कम 20 मिलियन स्पर्म का होना जरूरी है।
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0
Answer:
During puberty, a surge of sex hormones causes vocal folds to lengthen and build up muscle, more so for boys who experience a spike in testosterone at this time.
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