Question

All the relationship between the two organisms or species in which both the partners derive benefit from each other is known as

• A. Parasitism
• B. Symbiosis
• C. Commensalism
• D. None of the above

Answer 1

The correct option is B Symbiosis

All the different groups of the population living in an area form population interactions between them. Symbiosis is a type of population interaction in which both groups of the population living together mutually benefit each other. For example, Rhizobium bacteria living in root nodules of leguminous plants provide the plants with their nitrogen requirements and in return, the bacteria obtain shelter and nutrition.

In parasitism, one organism is harmed and the other is benefited, at the cost of the former. In commensalism, one is benefited and another is neither harmed nor benefited.

So the correct option is B.