What types of human and animal behavior are "complex, unlearned, and rigidly patterned"?

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hi,   i believe the outlines that were supposed to be showing at the sentences, are not. could you highlight them somehow?

i guess you are missing the idea that has to be supported, am i right?

clerical work ensures that an office runs smoothly. it involves the day-to-day administrative tasks of an office, such as answering phones, scheduling appointments, sending faxes, and filing documents. office clerks and secretaries need to have particularly strong clerical skills.

explanation:

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