The sporophytes of mosses depend on the gametophytes for water and nutrition. In seed plants, the reverse is true. From which seed plant sporophyte structure(s) do the immature (unfertilized) gametophytes directly gain water and nutrition?
A) sporophylls
B) embryos
C) sporangia
D) sporopollenin
E) ovary
Ans: C) sporangia
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