what is sperm? who made it?
Answers
Answer:
Sperm develop in the testicles within a system of tiny tubes called the seminiferous tubules. At birth, these tubules contain simple round cells. During puberty, testosterone and other hormones cause these cells to transform into sperm cells. The cells divide and change until they have a head and short tail, like tadpoles. The head contains genetic material (genes). The sperm move into the epididymis, where they complete their development.
Answer:
Explanation:
Sperm were first observed in 1677 by Antoine van Leeuwenhoek using a microscope. He described them as being animalcules (little animals), probably due to his belief in preformationist, which thought that each sperm contained a fully formed but small human.
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Sperm develop in the testicles within a system of tiny tubes called the seminiferous tubules. At birth, these tubules contain simple round cells. During puberty, testosterone and other hormones cause these cells to transform into sperm cells. The cells divide and change until they have a head and short tail, like tadpoles. The head contains genetic material (genes). The sperm move into the epididymis, where they complete their development.
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i hope u understand