They provide 50% of the DNA material necessary to make a baby !
Male sex cells (gametes) are known as spermatozoa - or simply sperm.
testis: male gonad that produces hormone and sperm cells
sperm cells
Sperm Cells
sperm
Sperm cells
Sperm cells can be produced during the lifetime of a male. Thus, there's different amounts of sperm cells in a male's testes all the time.
Undifferentiated sperm cells in the male embryo are called spermatogonia. These cells undergo mitosis to produce more spermatogonia or differentiate into sperm cells during spermatogenesis.
The male sex cells or gametes are called sperm.
The testes are responsible for producing sperm cells in the male reproductive system.
sperm and egg cells
Sperm cells are produced in the male testes through a process called spermatogenesis. Spermatogenesis occurs in the seminiferous tubules of the testes, where spermatogonia (immature sperm cells) undergo several stages of development to eventually become mature sperm cells.