What is the term for the relationship between different species in which at least one benefits?

What is the term for the relationship between different species in which at least one benefits?

• A. Predation
• B. Competition
• C. Parasitism
• D. Symbiosis

Answer: (D)

The main idea here is a close, long-term interaction between two different species where at least one participant gains a benefit. Symbiosis is the term used for these kinds of relationships, and it includes several forms: mutualism (both benefit), commensalism (one benefits, the other is unaffected), and parasitism (one benefits, the other is harmed). This broader term fits the description because it covers interactions where at least one organism benefits, including parasitism, while also capturing the idea of a meaningful, ongoing association. Predation involves one organism benefiting in a one-time interaction by eating another, and competition is about individuals or species vying for the same resources without necessarily forming a close, long-term association, so they’re not the best fit for the described concept. Therefore, the term that best matches the statement is symbiosis.

The main idea here is a close, long-term interaction between two different species where at least one participant gains a benefit. Symbiosis is the term used for these kinds of relationships, and it includes several forms: mutualism (both benefit), commensalism (one benefits, the other is unaffected), and parasitism (one benefits, the other is harmed). This broader term fits the description because it covers interactions where at least one organism benefits, including parasitism, while also capturing the idea of a meaningful, ongoing association. Predation involves one organism benefiting in a one-time interaction by eating another, and competition is about individuals or species vying for the same resources without necessarily forming a close, long-term association, so they’re not the best fit for the described concept. Therefore, the term that best matches the statement is symbiosis.