A trait that falls into natural groups that originate not in categorically distinct causes but in whether or not the outcome attains critical values; e.g., gallstones may result from a categorical cause or from unusual levels of causal factors that themselves show no evidence of grouping.
Synonym: liminal trait.
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... because it is beneficial..... I bet in the days of old, when this trait was not widespread among our older ancestors some caveman did not interpret ... will allow the propioceptive neurons to reach action potential firing threshold and fire away, this signals will synapse at the spinal cord, where ...
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