Answer:
Explanation:
Autism is one of a group of neurodevelopmental disorders known as pervasive developmental disorders (PDD). These disorders are characterized by three core deficits: impaired communication, impaired reciprocal social interaction and restricted, repetitive and stereotyped patterns of behaviors or interests.
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Answer:
Risk factors for chronic disease tend to persist and tend to increase.
Answer:
Multiple Sclerosis
Explanation:
Multiple Sclerosis is a potentially disabling disease of the brain and spinal cord (central nervous system).
