Commensalism (Symbiotic Relationships)

       Commensalism is where two organisms benefit from each other, and the other isn't harmed right?
Well, when you think about it, for example seagulls, they take food from you, but they also eat the left overs from what people throw away in a garbage can outside in the garbage can. So humans are unharmed, when they throw away food, and seagulls eat it, another example is fish and the anemones. They go into the anemones to keep shelter from fish that can harm or eat them, also the adaptation they have is they won't get affected by the anemone's poison when they touch it. Other fish will be poisoned, or harmed. Commensalism is basically a cow and a bird, one of them eats the bugs off the cows back, and the other gets to eat, and not get affected by the bird. In a way they're both getting food, and surviving off each other. Another way Commensalism can help is the animals or plants, who need a specific thing to survive off of, for example weeds they need nutrients from the soil, so humans grab herbicide and spray it on the weeds, so the other plants don't get affected. A unique way of Commensalism is plankton it lives off carbon dioxide in the air and it releases oxygen, not affecting anyone or anything, except it's benefiting off carbon dioxide. They're many ways of Commensalism in the world, and they're so many ways of describing it. Look around, you may even get a closer look. Grass another example it lives off nutrients from the soil, and it gives off oxygen, along with trees, and other plants.