Dependence in Biological Definition

Barbiturate

... impaired judgment. Depending on the dose, frequency, and duration of use, one can rapidly develop tolerance , physical dependence, and psychological dependence to barbiturates. With the development of tolerance, the margin of safety between the effective dose and the lethal dose becomes very narrow. That is, ...

Endosymbiotic theory

... the organelle, and both mitochondria and chloroplasts have unusually small genomes compared to other organisms. This is consistent with an increased dependence on the eukaryotic host after forming an endosymbiosis. Chloroplasts appear in very different groups of protists , which are in general more ...

Marine biology

... , which includes weasels and badgers . Finally, Polar Bears (Family Ursidae ) are sometimes considered marine mammals because of their dependence on the sea. In the USA they are protected under marine mammal protection laws. Reefs Reefs comprise some of the densest bio habitats in the ...

Muscle

... is a large group of diseases, many of them hereditary, where the muscle integrity is disrupted. It leads to progressive loss of strength, high dependence and decreased life span. Inflammatory muscle disorders: Polymyalgia rheumatica (or "muscle rheumatism") is an inflammatory condition that ...

Symbiosis

... notion of evolution, driven by competition , as incomplete, and claims evolution is strongly based on co-operation , interaction , and mutual dependence among organisms. According to Margulis and Sagan (1986), "Life did not take over the globe by combat, but by networking". As in humans, organisms ...

Synapse

... a synapse may in effect diminish as a train of action potentials arrive in rapid succession--a phenomenon that gives rise to the so-called frequency dependence of synapses. The nervous system exploits this property for computational purposes, and apparently tunes its synapses through such means as ...