they are actually called testis and they produce semen which is used to reproduce:)
testes produce mainly testosterone and ovaries produce mainly oestrogen
Because of the hormones they produce.
Testis.
A human kidneys produce 2 kinds of hormones, calcitriol & erythropoietin
The function of testis is to produce spermatozoa and androgens (male sex hormones, such as testosterone).
The brain sends signal to the adrenal glands to produce hormones. Also testis produce a lot of testosterone and in females its oestrogen
The function of the testicles or testis is to produce sperm and hormones. For more detailed info visit: http://en.wikipedia.org/wiki/Testicle#Function
In humans, the role of the testes is to produce sperm and androgens (male sex hormones; testosterone).
Interstitial cells of Leydig in the testes secrete testosterone.
To produce sex cells and hormones specific to the gender.. Then this is released through the cloaca. Hope this helps :)
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The testis produce the male androgen testosterone.
Firstly, the brain signals the glands to produce more hormones . this leads to the increase in size of testis and other organs.
The male gonads, which release sperm and the hormone testosterone, are called the 'testes' (singular: testis).
They produce testosterone.
In the testis (balls)