What are Spermatozoa and How Do They Differ from Spermatia?

Spermatozoa (spermatids) are immature sperm cells that have not yet undergone meiosis and are found in the testes. They are produced by the testicular tissue and are responsible for fertilizing the egg cell during reproduction. Spermatozoa are characterized by their large size, numerous mitochondria, and the presence of a flagellum (tail) that allows them to move through the reproductive tract.

Spermatia, on the other hand, is an outdated term that was previously used to describe mature sperm cells. The term is no longer used in modern biology, as it has been replaced by the more accurate term "spermatozoa".

In summary, spermatozoa are immature sperm cells found in the testes, while spermatia is an outdated term that was previously used to describe mature sperm cells.