The relationship between two organism where one benefits and the other is neither harmed nor helped

may be it is virus and bacteria

Explanation:

causr virus harms and thier are mainy advantages of bacteria

answer; ///i believe the correct answer is (c)///unify chinaplz check first

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.