Question

What famous discovery did Antonie van Leeuwenhoek make with his home-made microscope? How did he make this discovery?

A) He discovered the structure of DNA. He used a powerful telescope.
B) He discovered the existence of cells. He used a home-made microscope with a single lens.
C) He discovered the theory of relativity. He used mathematical equations.
D) He discovered the process of photosynthesis. He used a greenhouse.

Answer 1

Antonie van Leeuwenhoek discovered microorganisms, including bacteria and protozoa, using his high-quality, single-lensed, home-made microscope.Thus, the correct answer is B)

Step-by-step explanation:

The famous discovery made by Antonie van Leeuwenhoek with his home-made microscope was the observation of microorganisms, which included bacteria and protozoa. He referred to these as 'animalcules' or 'wee little beasties.' Leeuwenhoek's groundbreaking observations were possible due to the high-quality lenses he crafted for his microscopes. These simple microscopes contained only a single lens but were more powerful than the compound microscopes of his time, nearly matching the power of modern light microscopes in clarity and magnification capability. He discovered the existence of cells. He used a home-made microscope with a single lens.