a barnacle living on a whale, where the whale is not helped or harmed, is what relationship?\n\nmutualism\npa…

Brief Explanations:

In ecology, symbiotic relationships are categorized based on how the interacting species are affected. Mutualism benefits both species, while parasitism benefits one at the expense of the other. Predation involves one organism consuming another. Commensalism is a specific type of relationship where one organism (the commensal) benefits by obtaining food, shelter, or transport, while the other organism (the host) remains unaffected, neither helped nor harmed. In this case, the barnacle gains a place to live and access to nutrient-rich water as the whale swims, while the whale is generally unaffected.

Answer:

Commensalism