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The fig tree provides a site for wasp egg-laying, while the wasp pollinates the fig tree, making it a mutualistic relationship.
Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism
A wasp whose offspring develop inside one caterpillar and ultimately kill it is a parasitoid. The female selects a host and deposits eggs; larvae then consume host resources while often manipulating or suppressing host immunity. Death is usually delayed until larval development is complete, distinguishing parasitoidism from rapid predation and from ordinary parasitism, in which host death is not an inevitable requirement. Host specificity can reflect precise adaptations to host physiology, defenses, and life history. Mutualism and commensalism would not cause the caterpillar's eventual death. This life cycle is ecologically important because parasitoids can strongly regulate insect populations and are widely used in biological control. Mechanistic reasoning is essential here: classifications should follow measurable consequences for survival, reproduction, resource acquisition, or detection. Context can modify interaction strength, but it does not erase the defining contrast among the alternatives presented. At population level, this mechanism can influence abundance, coexistence, and evolutionary selection. Separating immediate individual effects from longer-term community outcomes gives the selected concept a clearer ecological meaning and avoids relying only on memorized terminology.
Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 8-13
