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Lecture 12

BIOL 101 Lecture 12: Ch 28

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BIOL 101

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The plant kingdom: seed plants Review question: What is the term for conelike clusters of leaves bearing sporangia? Strobili Heterospory:(required for spores) Seed: a structure that includes a dormant plant embryo and a store of food, packaged together within a protective coat Protective coat is from megasporangium of the parent sporophyte Remnant of entire female gametophyte is enclosed within the coat Embryo is offspring sporophyte generation Seeds: Primary means of reproduction and dispersal of seed plants Reproductively superior to spores on land (usually) Protection by seed coat Both seeds and spores are well protected A dormant
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