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.
The answer is red blood cells
Answer:dexa scan , whole body plethysmography, underwater/hydrostatic weighing
Explanation:
-A small does of the body passes through the x-ray
- you step into a pod and it measures your over all density
-you sit on a scale underwater and it weighs you