Taxes and kinesis

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7 Terms

1
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Taxes

directional response to stimulus

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positive taxis

directional movement towards a stimulus

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negative taxis

directional movement away from a stimulus

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kinesis

non-directional response to a stimulus relying on speed and random changes of direction

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how the favourability of the environment influences kinesis

the more unfavourable the stimulus the faster the organism will move away, increasing random direction of movement in order to return to favourable conditions ASAP

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how kinesis changes if an organism is surrounded by negative stimuli

rate of turning decreases to keep it moving in a relatively straight line to increase the chances of finding more favourable conditions

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Reasons for taxis

-find a mate

-move to more favourable environment

-avoid predators

-find food