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in addition to seeds, which characteristic is unique to the seed-producing plants?

firemonkey

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11 years ago

in addition to seeds, which characteristic is unique to the seed-producing plants?

a. sporopollenin
b. lignin present in cell walls
c. pollen
d. use of air currents as dispersal agent
e. megaphylls

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michelfelcon1

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Posts: 13

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11 years ago

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