In which of the following ways do cycads and

ginkgos differ from conifers?



a. cycads and ginkgos have flagellated sperm;
conifers do not have flagellated sperm
b. conifers have microspores and megaspores;
cycads and ginkgos have only one type of
spore
c. cycads and ginkgos form fruits; conifers do
not
d. conifers form seeds on the surface of the
ovules; cycads and ginkgos form seeds in
enclosed structures
e. conifer form seeds from female
gametophytes; cycads and ginkgos form
seeds from male gametophytes


A

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