Question

Two organisms live in close association with each other such as one is benefited and the other is neither benefited nor harmed. Which of the following terms best describes this relationship?

• A. Mutualism
• B. Commensalism
• C. Symbiosis
• D. Parasitism
• E. Predator-prey relationship

Answer 1

Answer: (B)

Commensalism

Mutualism refers to the association which is benefited to both the partners. Parasitism is the relationship where one organism is benefited at the expense of other. Commensalism refers to the relationship wherein one organism is benefited while other remain unaffected. Symbiosis is the close association between two organisms of different species wherein one or both partners are benefited. Predation refers to the act of feeding on other animals. Thus, the correct answer is option B.