Specific, sometimes minute, aspects of a situation that activate fixed action patterns are called features.

The answer is trigger features.

Explanation:

Trigger features are stimuli that activate immediate neuronal responses. These features might be specific sounds, shapes or colours that always elicit the same responses, in the same order and manner. For this reason, trigger features are also called "releasers".

Trigger features are often used in persuasion strategies.  

the first two-party system consisted of the federalist party, who supported the ratification of the constitution, and the democratic-republican party or the anti-administration party (anti-federalists), who opposed the powerful central government, among others, that the constitution established when it took effect in

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