If you are 15 years old, and you have never ejaculated, then you have started puberty late. But try masturbating for a long period of time and if sperm still does not come out then you have not yet developed sperms, and nothing can be done about it.
You will start to produce sperm in your semen as you grow older. At first when masturbating you will have dry climax's, then you will progress to have some fluid which will be semen, this is usually whitish and sticky, it may be almost clear. Later as you mature you will produce sperm in the semen. It all happens during puberty. If you are 15 now you should be well away in a years time.
plants do not produce sperm, they produce pollen
Masturbate to produce sperm.
Women do not produce sperm ! Women produce eggs - which are developed in their ovaries !
females do not produce sperm
You can produce sperm in your semen once puberty has begun. Before puberty begins you will not be able to produce semen. The testes will produce the sperm when the secondary sexual characteristics are ready.
All animals produce about the same amount of sperm.
The testicles produce sperm adn testosterone, which helps to make you mature
The answer is no because sperm is produce everyday and ova is produce periodicaly
No, girls don't produce sperm.
Girls do not produce sperm.
when sperm fertilize ovule then it produce another living cell
Blue whales can produce over 40 gallons of sperm .