1) An organism that can produce its own organic nutrients using energy from the sun. a) Photoautotroph b) Chemoautotroph c) Detritivore d) Primary consumer e) Herbivore 2) An interaction between two species in which both species benefit. a) Herbivory b) Parasitism c) Mutualism d) Predation e) Competition  3) An animal that eats plants a) Secondary consumer b) Producer c) Tertiary consumer d) Primary consumer 4) Graph that represents the total mass at each trophic level in a food chain a) Pyramid of energy b) Pyramid of biomass c) Pyramid of numbers d) Pyramid of weight

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