In addition to seeds, which of the following characteristics is unique to seed-producing plants?
A) sporopollenin
B) lignin present in cell walls
C) pollen
D) megaphylls
Correct Answer:
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Q12: The internal parts of the pollen grains
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Q15: Which of the following statements best describes
Q16: In seed plants, which of the following
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Q18: Which answer arranges the characteristics of plants
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