Examlex
Numerology is a pseudopsychology.
Autotroph
An organism that synthesizes complex organic compounds from simple inorganic raw materials; also called producer or primary producer. Compare with heterotroph. See chemoautotroph and photoautotroph.
Saprotroph
A saprotroph is an organism that feeds on or derives nourishment from decaying organic matter, essential for nutrient cycling in ecosystems.
Food Chain
A series of organisms each dependent on the next as a source of food, illustrating the flow of energy and nutrients from one organism to another.
Ecological Pyramid
A graphical representation of the relative energy value at each trophic level. See pyramid of biomass and pyramid of energy.
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