Positive symptoms of schizophrenia are the of inappropriate behaviors, and negative symptoms are the of appropriate behaviors. presence and absence absence and absence presence presence

presence and absence

Explanation:Schizophrenia is a mental disorder that affects how a person thinks, feels, and behaves,it lasts long (chronic) in most persons and always severe It is believed to be HEREDITARY,although some scientific evidence show it is also ENVIRONMENTAL, Contact with VIRUSES, MALNUTRITION BEFORE BIRTH,PSYCHOLOGICAL AND SOCIAL factors can be responsible. Affected persons also appear confused and always act abnormally.Schizophrenia is less common compared to other mental disorder but it is always more devastating and disabling.

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

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