CoachA microscope is an instrument whose lenses magnify very small things hundreds of times. Pointed at thin slices of living material, it revealed what no eye had ever seen: the cells. The name itself was coined by an early observer who thought the little compartments in a slice of cork looked like monks’ small rooms — cells.
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Example 29.5 (Two classics under the lens)
Two observations any school microscope can repeat: a shred of the thin skin inside an onion shows neat rows of brick-like cells, wall against wall; a gentle scrape from the inside of a cheek shows scattered, rounder cells — yours. Plant and animal, side by side, both cellular.