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.
Seeds for study. Some of the greatest advances in autism biology have come from studying a handful of rare neurologic disorders that are caused by a single gene and sometimes include features of autism. Four of the best examples are Rett syndrome, Fragile X syndrome, tuberous sclerosis complex and Angelman syndrome.