Children who are diagnosed with autism spectrum disorder can vary in the type and range of symptoms they display, but all children with autism spectrum disorder have .

Communication challenges

Restricted repetitive behaviours.

Explanation:

These are the general symptoms of autism becaue austism is often associated with high rates of different physical and mental challenges

answer; the correct answer is medical care service field;

b) the heart is a pump made of muscle and that is difficult to grow in the lab.