Animal Behavi37 - Animal Behavior: Orientation and...

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Animal Behavior: Orientation and Navigation Movement: Taxis and Kinesis Kinesis and Taxis Nearly all animals are mobile at some point in their life. For some lower animals, movement is undirected and random, such as a Paramecium blundering about its environment. Such undirected orientation is called kinesis. In contrast to kinesis, taxis is the term for movement in response to some stimulus. Taxis involves more complex behavior than kinesis, and is generally what we think of when we think of movement. Different taxes (plural of taxis) result in response to different types of stimuli. Each of these forms of taxis can be described by simply adding a prefix to the word taxis. The table below shows the most common forms of taxis. Figure %: Important Taxes From these terms we can describe almost any directed movement. For instance, phototaxis would be movement in response to light. Chemotaxis means movement in response to a chemical. Any combination of these words can be used. Movements toward a stimulus are positive taxes, while
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Animal Behavi37 - Animal Behavior: Orientation and...

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