Question

barnacles and whales have a commensalistic relationship in which barnacles benefit. what would most likely happen to the whale population if the barnacle population decreased? become extinct decrease increase stay the same

Explanation:

In a commensalistic relationship, one organism benefits while the other is neither helped nor harmed. Since barnacles' decrease doesn't directly impact whales' well - being, the whale population is likely unaffected.

Answer:

stay the same