Biology / Unit 1 Bio 0070 short lesson, about 20 seconds
Is a Virus Alive?
Captions available
The idea
Whether a virus counts as a living organism is genuinely open, and this course states both positions without a verdict.
In practice
One position denies a virus life, lacking cells and reproducing only inside a host; the other grants it life, since it evolves inside a cell.
Where people slip
Both positions accept the same facts about a virus; they differ only on which facts define life.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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