Final answer:
Idiopathic developmental abnormalities have unknown causes and origins, such as autism spectrum disorder (ASD). They are not attributed to genetic or environmental factors.
Explanation:
Idiopathic developmental abnormalities stem from an unknown cause or origin. These abnormalities do not have a clear identifiable source and are not attributed to genetic or environmental factors. A common example of a developmental disorder with an idiopathic cause is autism spectrum disorder (ASD), where the exact cause remains unknown.
Learn more about Developmental Abnormalities here:
https://brainly.com/question/41049097
