who first recognized the cell as the universal unit of life?\nvirchow\nvan leeuwenhoek\nhooke\nschleiden and…

Brief Explanations:

Schleiden and Schwann formulated the cell - theory which recognized the cell as the universal unit of life. Hooke was the first to use the term "cell", van Leeuwenhoek made important contributions to microscopy and observing single - celled organisms, and Virchow added to the cell - theory but did not first recognize the cell as the universal unit of life.

Answer:

D. Schleiden and Schwann