Siti observed that an orchid plant was growing on a tall tree in the park. The orchid receives more sunlight by being high up, while the tree is neither helped nor harmed. What type of interaction is this?
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Worked Solution
Step 1: Identify the relationship (One benefits, one is unaffected).
Step 2: Recall definitions. Commensalism is (+/0).
Step 3: Match with the observation.
Correct answer: Commensalism
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