Question

Which of the following associations shows mutualism?

• A. Fig and wasp
• B. Barnacles on whale
• C. Roundworms in human intestine
• D. Orchids on mango tree

Answer 1

The correct option is A Fig and wasp

Mutualism is an interaction between two organisms of different species in which both the partners are benefitted, with none of the two capable of living separately.
In many species of fig trees, there is a relationship with the pollinator species of wasp. The female wasp uses the fruit not only as an oviposition site but uses the developing seeds within the fruit for nourishing its larvae. The wasp pollinates the fig inflorescence, while searching for suitable egg-laying sites. The fig returns this favour of pollination by offering the wasp some of its developing seeds, as food for the developing wasp larvae.
Roundworms in human intestine is parasitism.
Barnacles on whale is commensalism.
Orchids on mango trees is commensalism.