#survival responses

[unwelcome-ozian]

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[rockpapercynic]

I always go with #3

[themightymitochondria]

Survival Responses - Tropism

Tropism is directional growth in response to stimuli. Most commonly used by plants in order to maintain a position most favourable for survival.

Like Taxis, Tropisms can be positive (towards a stimulus) or negative (away from a stimulus)

The most common forms of tropism are

Phototropism - growth in response to light intensity (for example, plants leaves show positive phototropism as they grow their leaves to face the highest light intensities)

Geotropism - growth in response to gravity (for example, the roots of a plant show positive geotrpism as they grow downwards)

Hydrotropism - growth in response to amount of water available (for example, plant roots show positive hydrotropism as they grow in the direction of water)

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This will probably be updated at some point

PPQ, MS & Spec

Specification - 3.5.1 / Stimuli, both internal and external, are detected and lead to a response

Tropisms as reponses to directional stimuli that can maintain the roots and shoots of flowering plants in a favourable environment

Organisms increase their chance of survival by responding to changes in their environment