Organism which we see through microscope (cell theory)

Cell theory by Schleiden and Schwann advocated that every organism was made of cells and cells rise from pre-existing cells.

The invention of the microscope allowed the first view of cells. English physicist and microscopist Robert Hooke (1635–1702) first described cells in 1665. He made thin slices of cork and likened the boxy partitions he observed to the cells (small rooms) in a monastery. The open spaces Hooke observed were empty, but he and others suggested these spaces might be used for fluid transport in living plants. He did not propose, and gave no indication that he believed, that these structures represented the basic unit of living organisms. Leeuwenhoek (1672) assembled a simple microscope and observed bacteria, protozoa, red blood cells etc. Schleiden and Schwann proposed the cell theory.

Microrganisms in short microbes are organisms which we see through microscope

Microorganisms is the answer of the question microorganisms

A cell is a struggle and fundamental unit of life. Also helps to do various functions.

All the microorganisms we can see under the electron microscope

The microorganisms cannot be seen with naked eyes because they are very small in size. Some of these, such as fungus growing on bread.