it could be different for every individual.normally it ranges from the age 13 and onwards.
In humans, the role of the testes is to produce sperm and androgens (male sex hormones; testosterone).
Testes produce sperm, which is required for reproduction for males. So yes, if there are no testes then the person cannot reproduce.
testies how about animals(just curious......)
Spermatozoa and androgens (male sex hormones, such as testosterone).
testies
Santa clause puts it in you while you are asleep
Sperm cells are made in organs called testes
Sperm production is the creation of sperm in the testies of the bull. Ovum production is the creation of eggs in the ovaries of the cow.
The testes produce testosterone and sperm cells. Testosterone is necessary for the secondary male traits such as physical strength, sexual interest, facial hair, low voice, etc. Sperm cells are used to impregnate females and thus create future generations of humans.
No
13 year old boys can produce sperm.
You will continue to produce sperm your whole life you usually start producing sperm when you hit puberty and beyond.