Who first recognized the cell as the universal unit of life?
c is the rihgt answer hooke
The right option is; d. Schleiden and Schwann
(Theodor) Schwann and (Matthias) Schleiden first recognized the cell as the universal unit of life. In 1839, they developed the cell theory which identifies the cell as the most basic unit of plants and animals. Schwann and Schleiden were able to discover that some organisms are unicellular, while some are multicellular. They also discovered that the nucleus and the cell membrane are part of the features of the cell.
The right option is; Hooke
Robert Hooke was an English scientist that first recognized the cell as the universal unit of life. In 1665, Robert Hooke observed honeycomb-like structure when he viewed very tiny slices of cork using a coarse compound microscope. He called the structures cells but he did not know their actual structure and function.
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Virchow van Leeuwenhoek
The cell was first recognized by Robert Hooke, but all the cells he observed were dead.
After advancement in microscopy, in year 1838 Schleiden and Schwann proposed cell theory.
The cell theory proposed by Schleiden and Schwann suggested that all the living organism are made up of cell. These cells are the smallest unit, which can perform all the function, which is required for a life, they can also divide, hence, it is the functional unit in all forms of life.
Later, Rudolf Virchow said, all cell arise from the existing cell, which further supported the idea of cell as a universal unit of life.