Definitions for "Biogenic"
(bi-o-gen'-ic) Formed by the action of biological organisms.
hydrocarbons, primarily methane, derived from biological processes.
caused by biological factors. Bi-directional causation - concept that biological processes (such as those of the brain, immune system or genes) and behavior and mental processes mutually influence each other.
Decalcification - When CO2 is deficient the plants can suck it right out of the hardening constituents of the carbonate hardness, thus raising pH. submitted by Adrian
Sediments composed of the remains of plant and animal life such as shells [LCOTE
essential for maintaining the fundamental life processes; "sleep and food and water are among the biogenic needs of the organism"
Deriving from a living organism
produced by living organisms
material originating in organisms.