alleryWhat instrument allowed scientists to first observe individual cells?
AX-ray machine
BMicroscope
CStethoscope
DTelescope
Answer & Solution
Correct answer: B. Microscope
The microscope — first the light microscope (using visible light + lenses), and later the electron microscope (using electron beams) — revealed the cellular structure of life.
Without microscopes, cells (typically 1–100 μm) are far too small to see.
Light microscopes typically reach 1000× magnification
electron microscopes go to 1,000,000×.
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