Microscopic life in the soil can play many roles, both positive and negative. Which of the following combinations of soil life would usually be the best choice to ensure long-term sustainable agriculture?
O nematodes and symbiotic bacteria
O microscopic non-animal lifedhylus earthworms
O sterile soil free of nematodes
O all broad classes of microbiota in balance

showing a photograph would make this a hell of alot easier

protist eukaryotes that are not plants, animals, or fungi ("misfits")

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.