Biology / Bio 2175 · Procedure · 60–90 seconds
Moss Life Cycle, Worked
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This procedure traces one moss's alternation of generations from spore germination through gametophyte growth, fertilization, and sporophyte development back to spore release.
Watch for
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.