BIOL 123 Lecture Notes - Lecture 6: Rhizobium, Commensalism, Cowbird
Document Summary
Transportation: some kind of movement of gametes. Protection mutualism: one will protect the other. Other will give some nutrient exchange as well. Poop out sugar, so ants can eat it. Ants protect aphids from being eaten, for their food source. Mutualisms are interactions between 2 or more species where each species benefits. Commensalisms: interactions were one species benefits, while the others isn"t affected at all. Symbiosis: long-term, intimate association between 2 species. Transportation mutualisms: interactions where one member of the mutualism has gametes or individuals transported by other mutualist. Some species attack or remove competitors or predators that impinge on another species. In return, the bacteria take nitrogen and convert to. Mutualisms involve exchange of nutrients ammonia, which the plant uses as a source. Ex: plants, aka legumes, and bacteria in the bacteria rhizobium. Bacteria live in the soil, and through biochemical manipulation, make legumes produce nodules so bacteria and live, where they protect and carbohydrate.
