Question

why testis in males placed outside the body?

Answer 1

The testicles hang in the scrotum by the spermatic cord. They are outsidethe body because they need to be cooler than the temperature inside thebody, in order to make sperm. If a man's testicles get cold, they are automatically pulled closer to thebody.

Answer 2

$\boxed{\boxed{\color{red}\textbf{Sperm Production}}}$
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$\color{blue}\textsf{The Sperms are produced}$$\color{blue}\textsf{ in testis.}$

To produce Sperms, the temperature should be 1 - 2° less than the body temperature.

$\color{violet}\textsf{To reach this temperature,}$
$\color{violet}\textsf{Testis are placed outside body}$
$\color{violet}\textsf{in a flap of skin(scrotum) so as to}$
$\color{violet}\textsf{maintain temperature for Sperm Production.}$
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$\color{orange}\textsf{Hope this helps!!!!}$