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प्रश्न
Give Reasons
At the time of birth, the testes descend into the scrotal sacs.
उत्तर
In human beings (mammals) the temperature required for the production and survival of sperms is lower than that of the body temperature. Hence, to provide a suitable temperature of about 2 – 3°C lower than that of body temperature, the testes descend into the scrotal sec at the time of birth.
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