- A Commensalism
- B a mutual symbiosis
- C only parasitism
- D the predation
Correct answer: A. Commensalism
Explanation: The orchid benefits while the tree is unaffected: commensalism.
Concept context
How organisms interact with abiotic factors and respond to stress, plus population attributes, growth models, and interspecific interactions such as predation, competition, and mutualism.