This box is the âfeeder boxâ â where the worms will live and feed. Half fill the feeder box with the worm bedding. Make sure your bedding is moist but not wet. If you are using dry materials like straw or shredded paper, wet them first and then squeeze out any excess water.
Causes. There is no known single cause for autism spectrum disorder, but it is generally accepted that it is caused by abnormalities in brain structure or function. Brain scans show differences in the shape and structure of the brain in children with autism compared to in neurotypical children.
There are a number of theories regarding the cause of autism. Scientists are researching links between genetics and medical issues. Other factors, such as problems during pregnancy and environmental factors, may also have an affect on the developing baby in regards to autism.Some researchers are investigating a number of theories, including the link between heredity, genetics and medical problems.t is a neurological disorder that impacts the normal development of the brain in the areas of social interaction and communication skills. According to the Centers for Disease Control and Prevention, 2010, autism is the most common of the Pervasive Developmental Disorders, affecting an estimated 1 in 68 births.