"Animalcules" Were First Described By

Question

"Animalcules" were first described by
A)Robert Hooke.
B)Antony van Leeuwenhoek.
C)Hans Janssen.
D)John Needham.

Accepted Answer

Antony van Leeuwenhoek was the first person to observe and describe animalcules, which are microscopic organisms such as protozoa and bacteria that he saw through his self-made microscopes. Robert Hooke was also an important contributor to the field of microscopy but he did not describe animalcules. Hans Janssen and his son Zacharias are credited with the invention of the compound microscope, but they did not describe animalcules. John Needham was a scientist who conducted experiments to support the theory of spontaneous generation, but he did not describe animalcules either.