The tallest living tree, standing 112 meters (367 feet) tall, is a redwood (Sequoia sempervirens) located in California. The tallest trees in the world, such as redwoods, are gymnosperms because
A) only gymnosperms have xylem cells, which assist in transpiration.
B) their very stiff xylem cells support the increase in height and weight.
C) only gymnosperms can transport water so high off the ground via negative water pressure.
D) deciduous trees possess cohesion but lack the adhesion necessary for water tension.
Correct Answer:
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