The scientist who first observed bacteria and protozoa is

Antonie Van Leeuwenhoek

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Robert Hooke

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Mathias Jacob

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Robert Brown

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Solution

The correct option is B Antonie Van Leeuwenhoek
Antonie van Leeuwenhoek (1632-1723) described cells in a drop of pond water using a microscope made by him. He was the first person to observe bacteria and protozoa. By observing the movement of bacteria or protozoa he named them animalcules. Therefore, the correct answer is option A.

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Robert Hooke was the first scientist who coined the term ‘cell’. Which cell did he observe under the microscope?

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