Biology / Unit 8 Bio 1653 short lesson, about 20 seconds
Scientific Theory, the Locked Term Reinforced
Captions available
The idea
"Theory" stays locked to its scientific sense, a well-tested explanation, as Unit 1's Bio 0034 fixed it, not reopened here.
In practice
Evolutionary theory, cell theory, and germ theory all use "theory" to mean a tested explanation, never a hunch.
Where people slip
Don't let "the theory of evolution" soften back to "a theory about evolution" later in the course — the locked, tested-explanation sense holds throughout.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Unlocks
- Nothing yet depends on this.
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