Biological hierarchy/Related Articles

Parent topics

Self-organization [r]: The ability of matter to structure itself; a precondition for life. ^[e]
Biology [r]: The science of life — of complex, self-organizing, information-processing systems living in the past, present or future. ^[e]
Life [r]: Living systems, of which biologists seek the commonalities distinguishing them from non-living systems. ^[e]

Molecule [r]: An aggregate of two or more atoms in a definite arrangement held together by chemical bonds. ^[e]
Macromolecule [r]: Add brief definition or description
Pathway (biology) [r]: Add brief definition or description
Cell (biology) [r]: The basic unit of life, consisting of biochemical networks enclosed by a membrane. ^[e]
Tissue (biology) [r]: A set of structurally and functionally similar cells in a multicellular organism. ^[e]
Organ (biology) [r]: Add brief definition or description
Organism [r]: An individual living individual: a complex, adaptive physical system that acts a integrated unit that sustains metabolism and reproduces progeny that resemble it. ^[e]
Group (biology) [r]: Add brief definition or description
Population (biology) [r]: Add brief definition or description
Ecosystem [r]: A space in which multiple biological species interact. ^[e]
Biosphere [r]: The entirety of places on Earth inhabited by living organisms. ^[e]

Origin of life [r]: How did self-replicating biochemistry and cells arise from the prebiotic world approximately four billion years ago? Aka abiogenesis. ^[e]
Catalysis [r]: A process that uses a substance (known as a catalyst) to accelerate the rate of a chemical reaction through an uninterrupted and repeated cycle of elementary steps until the last step regenerates the catalyst in its original form. ^[e]
Autocatalysis [r]: Add brief definition or description
Enzyme [r]: A protein that catalyzes (i.e. accelerate) chemical reactions. ^[e]
Ribozyme [r]: A ribonucleic acid with catalytic activity. ^[e]
RNA world [r]: Add brief definition or description