Question

In commensalism

• A. Population of commensal and host remain unaffected.
• B. Population of commensal increases, while that of host remains unaffected.
• C. Population of both commensal and host increases.
• D. Population of commensal increases while the population of host gradually decreases.

Answer 1

The correct option is B Population of commensal increases, while that of host remains unaffected.

Commensalism is a relationship between two organisms where one receives a benefit or benefits from the other and the other is not affected by it. In other words, one is benefited and the other is neither benefited nor harmed.