In addition to seeds, which of the following characteristics is unique to the seed-producing plants?
a) sporopollenin
b) pollen
c) use of air currents as a dispersal agent
d) megaphylls
e) lignin present in cell walls
Answer: B
In addition to seeds, which of the following characteristics is unique to the seed-producing plants?
a) sporopollenin
b) pollen
c) use of air currents as a dispersal agent
d) megaphylls
e) lignin present in cell walls
Answer: B