which was the first \cell\ viewed by the light microscope?\nmicrobe\natom\ndna\noak bark

which was the first \cell\ viewed by the light microscope?\nmicrobe\natom\ndna\noak bark
Answer
Brief Explanations:
In 1665, Robert Hooke used a light - microscope to observe a thin slice of cork (oak bark). He coined the term "cell" after seeing the box - like structures. Microbes were observed later, atoms and DNA are much too small to be seen with a light - microscope.
Answer:
oak bark