Question

question 1 there is evidence that identical twins are more likely to both have anorexia nervosa than fraternal twins. this is an example of a ______ risk factor. a biological b psychological c social - cultural d semi - social

Explanation:

Identical twins share more genetic material than fraternal twins. Since the increased likelihood of both having anorexia nervosa is related to their genetic - similarity, it is a biological risk factor. Psychological factors would involve mental processes, social - cultural factors would be about society and culture, and semi - social is not a typical category for such risk factors.

Answer:

A. Biological