Unified Cell Theory
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Unified cell theory holds that living things are made of cells, the cell is life's basic unit, and new cells arise only from existing cells.
Show
Schleiden and Schwann proposed it in the 1830s from tissue studies; Virchow's work reinforced the third claim.
Watch for
This is the confirmed sense of theory locked at Bio 0034 — not a hunch.
Builds on
Unlocks
- Nothing yet depends on this.