Most angiosperms have alternate phyllotaxy. What allows each leaf to get the maximum exposure to light and reduces shading of lower leaves?
A) a leaf area index above 8
B) self-pruning
C) one leaf only per node
D) leaf emergence at an angle of 137.5°F from the site of previous leaves
E) a leaf area index above 8 and leaf emergence at an angle of 137.5°F from the site of previous leaves
Answer: D
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