Human sperm was discovered by
Leeuwenhoek
Aristotle
Graaf
Pander
A.
Leeuwenhoek
Sperm were first observed in 1677 by Antonie van Leeuwenhoek using a microscope, he described them as being animalcules (little animals), probably due to his belief in preformationism, which thought that each sperm contained a fully formed but small human.
Which of the following gland is often referred in relation with AIDS
Thyroid
Thymus
Adrenal
Pancreas