28. Plants
Land Plants
1:58 minutes
Problem 1c
Textbook Question
Textbook QuestionWhat important role does lignin play in vascular plants? a. It is the major component of the cuticle, which prevents plants from drying out. b. It forms the outer layer of pollen grains. c. It forms the tough, rigid cell walls of water-conducting cells. d. It nourishes the embryo in seed plants.
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