Mutualism is relationship that is beneficial to both organisms involved. The relationship between a plant and a bacterium called a mutualism because both of them help each other. Bacteria are involved in increasing the fertility of the soil by fixing atmospheric nitrogen and thus provide plant with nitrogen. In return, the bacteria make their homes in what usually become nitrogen "nodules" along plant roots. The plant gets food, the bacteria gets shelter, everybody wins.
4 significant figures I think
I think the correct answer from the choices listed above is the third option. The term that describes all of the non-living components of an ecosystem would be abiotic. Abiotic<span> components or </span>abiotic<span> factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.</span>
The term is nitrogen fixation.
The correct order of structures in the body is: atoms, molecules, organelles<span>, cells, tissues, organs, </span>organ<span> systems, organisms </span>
