What is the relationships between predator and prey and parasitic and commensalism ansd competition and mutualism?

Ah I can vouch for the predator and prey part. I am a hunter. Scrutinize if you will, but I am essentially a form of predator. However referring to animals, it is in their nature. They have to eat to survive, therefore the must prey on other life forms to survive. As a hunter however, we humans are different. Although we used to hunt out of necessity for food, now it is less for food and more for conservation. We are different than animals in this way.