The type of adaptation that herbivores having a monocular vision to allow them a wider range of vision is called the structural or physical adaptation. Structural adaptation is the physical features of an organism or a characteristic in the body part of an organism which helps them survive in their natural habitat or environment.
The center of the world is the equator
Fish is good to lowering blood pressure because contain vitamin D, and this hormone-like vitamin has properties that can lower blood pressure.
I think the relationship is Commensalism ( relationship between two organisms in which one benefits and the other does not benefit nor is harmed ) because the bird benefits and the cow does not benefit nor is harmed. Hope this helped ☺