Biology / Unit 10 Bio 2175 worked example, 60 to 90 seconds
Moss Life Cycle, Worked
Captions available
The idea
This procedure traces one moss's alternation of generations from spore germination through gametophyte growth, fertilization, and sporophyte development back to spore release.
Where people slip
Skipping the water-dependent fertilization step is the most common error in tracing this cycle — without standing water connecting the two gametophyte structures, moss sperm cannot reach an egg at all.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Something wrong in this lesson? Flag it · Sources for Biology