What's this? Please answer with an explanation

Answer:
Mutualism, a relationship in which both species benefit,
Explanation:
there are many examples of mutualistic bacteria in the gut that aid digestion in both humans and animals. -> "one can't live without the other" something like that
Answer:
mutualism
Explanation:
commensal means one is benifited while other is neither benifited not harmed for eg ecoli in our stomach
mutualism means both are benifited for eg birds eating bugs form animals bodies
predation means one is benifited one is harmed eg hunting animals