Biology / Unit 14 Bio 3599 short lesson, about 20 seconds
"Any Close Species Relationship Is Parasitic"
Captions available
The idea
Assuming any close, sustained relationship between two species must be parasitic overstates a real pattern — symbiosis, per Bio 3595, includes mutualism and commensalism as equally valid, non-parasitic outcomes.
In practice
A pollinator and the flowering plant it visits both benefit, fitting mutualism rather than parasitism.
Where people slip
This entry states the popular assumption — Bio 3601 gives the test the assumption overlooks.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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