Question

which was the first \cell\ viewed by the light microscope?
microbe
atom
dna
oak bark

Explanation:

In 1665, Robert Hooke used a light microscope to observe cork (oak bark) and first coined the term "cell" to describe the small, box - like structures he saw. Microbes were not the first viewed as cells in this context. Atoms are much smaller than what can be seen with a light microscope to be identified as cells. DNA is a molecule within cells and was not the first "cell" viewed.

Answer:

oak bark