Hamm and Leeuwenhoek were the first scientists to observe human sperm cells (spermatozoa) using an improved microscope in 1677 (more than 1000 years after Muhammad ).
(Hamm and Leeuwenhoek; were; the first scientists to observe human sperm cells (spermatozoa) using an improved microscope in 1677 (more than 1000 years after Muhammad) (the first scientists; to observe; human sperm cells)
Hamm and Leeuwenhoek the first scientists
were to observe
the first scientists to observe human sperm cells (spermatozoa) using an improved microscope in 1677 (more than 1000 years after Muhammad
human sperm cells