Hemlocks Cast Much Deeper Shade Than Birch Trees

question 58

Multiple Choice

Hemlocks cast much deeper shade than birch trees. The tree that competes more successfully for light is

• A) hemlock, because it casts deeper shade.
• B) the tree that survives best under low levels of light.
• C) the tree that can persist as saplings in deep shade in the forest understorey.
• D) the most abundant species of saplings in the understorey.

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