What has research shown concerning the tendency for autistic ...

[Pineappleeh]

What has research shown concerning the tendency for autistic disorder
  to run in families?
 
  a) Autistic disorder does not run in families.
   b) The tendency for autistic disorder to occur in families seems related
   to environmental toxins.
  c) Families with an autistic child have an elevated risk of having another child with autistic disorder.
   d) Families with high rates of schizophrenia are at elevated risk for having children with autistic disorder.

Question 2

What have brain imaging studies shown about the brains of autistic individuals, compared to the brains of non-autistic individuals?
 
  a) smaller limbic systems
   b) larger lateral ventricles
   c) same level of neurological functioning
   d) larger temporal, parietal, and occipital lobes

[chinwesucks]

Answer to Question 1

Many thanks to you.

Answer to Question 2

Great help.

[Pineappleeh]

Thanks for the timely response, appreciate it

[Bigfoot1984]

Wow, this really help