article: Life
links: Family (biology) Tree of life (biology) Systems theory Fertilization Humberto Maturana Artificial life SAR supergroup Plantae Organ (anatomy) Earth Thermodynamic entropy Domain (biology) Motion (physics) RNA Wall Street Journal DNA Krebs cycle Marine biology Multicellular organism Death Archaea Class (biology) Holozoa Earliest known life forms Animal Fish Mule K/T extinction event Eukarya Evolution Amoebozoa Community (ecology) Bacteria Plant Salmonella Holocene Opisthokont Unicellular organism Archaeplastida Birth Cell division Mycoplasma Kingdom (biology) Chromalveolate Viroid Eukaryota Extinction Order (biology) Homology Virus Cell membrane University of Bristol Universe Amanita muscaria Miller–Urey experiment Reduction (chemistry) Fungi Francisco Varela Stegosaurus Archean Hadean Biology