The relationship between mosquitoes and humans is best described as predation. Mosquitoes feed on human blood, which they require for the development of their eggs. This interaction is one-sided and harmful to humans, as it can lead to discomfort, allergic reactions, and the transmission of diseases such as malaria, dengue fever, and Zika virus.
In this relationship, mosquitoes benefit by obtaining a necessary resource (blood) for their reproduction, while humans are harmed. This type of interaction is not mutualistic (where both parties benefit) nor competitive (where both parties are harmed or compete for resources). Instead, it is a clear example of predation, where one organism (the mosquito) benefits at the expense of another (the human).