The evolutionary process by which a species' genome and phenotypic characteristics change over time in response to changes in the environment. An interference interaction in which a plant releases into the environment a compound that inhibits or stimulates the growth or development of other plants. The variety of species in a particular location in one community or agroecosystem. An inter-organism interaction in which one organism negatively impacts another organism without receiving any direct benefit itself. An organism that satisfies its need for organic food molecules by using the energy of the sun, or of the oxidation of inorganic substances, to convert inorganic molecules into organic molecules.
Green plants are autotrophs.
B beneficial insects Beneficial insects are predators, parasites, or competitors of insect pests, helping to regulate pest populations without harm to crops. The difference in the assemblage of species from one location or habitat to another nearby location or habitat, or from one part of an agroecosystem to another. The study of biogeochemical cycling . The fixation, by bacterial cells, of atmospheric Nitrogen gas into organic compounds useful for life. Nitrogen-fixing bacteria exist in the soil and in association and symbiosis with plants or fungi.