Answer: Mutualism Commensalism
Explanation:
Mutualism is an biological interaction between species, where each species benefits. In the first case, the ant-plants and the P. phylax benefits from each other.
Commensalism in a biological interaction where one species receive benefits from other species, but the other specie do not get any benefits or get harmed. In the second case only one species receive benefits, C. mckeyi, the ants, while the ant-plants does not receive benefits nor get harmed