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Aerotaxis is the response of an organism to variation in oxygen concentration, and is mainly found in aerobic bacteria. [8] Anemotaxis is the response of an organism to wind. Many insects show a positive anemotactic response (turning/flying into the wind) upon exposure to an airborne stimulus cue from a food source or pheromones. [7]
This prepares the muscles for the body's natural fight-or-flight response. [22] Organisms rely on many different means of intra-organismic communication. Whether it is through neural connections or chemical messengers (including hormones), intra-organismic biocommunication evolved to respond to threats, maintain homeostasis and ensure self ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
A tactic is a conceptual action or short series of actions with the aim of achieving a short-term goal. This action can be implemented as one or more specific tasks. The term is commonly used in business, by protest groups, in military, espionage, and law enforcement contexts, as well as in chess, sports or other competitive activities.
Kinesis, like a taxis or tropism, is a movement or activity of a cell or an organism in response to a stimulus (such as gas exposure, light intensity or ambient temperature). Unlike taxis, the response to the stimulus provided is non-directional.
The SOS response was articulated by Evelyn Witkin. [3] [4] Later, by characterizing the phenotypes of mutagenised E. coli, she and post doctoral student Miroslav Radman detailed the SOS response to UV radiation in bacteria. [3] [5] The SOS response to DNA damage was a seminal discovery because it was the first coordinated stress response to be ...
The following is a summary of the costs and benefits attributed to shark threat displays in comparison to mounting a physical attack as a primary response to natural conflict: Table 2: Summary of costs and benefits incurred by sharks performing agonistic behavioural displays in place of mounting a physical attack [ 1 ]
A typical example of the stress response is a grazing zebra. If the zebra sees a lion closing in for the kill, the stress response is activated as a means to escape its predator. The escape requires intense muscular effort, supported by all of the body's systems. The sympathetic nervous system's activation provides for these needs. A similar ...