A 10‑year‑old boy exhibits significant inattention at school and hyperactive behavior at home. To support an ADHD diagnosis, which additional evidence is most critical?

A 4‑year‑old nonverbal boy is referred for evaluation due to limited social engagement and persistent repetitive behaviors (e.g., hand-flapping, insistence on routines). Which finding would most strongly support a diagnosis of ASD?

A 12‑year‑old who has experienced prolonged neglect exhibits nightmares, hypervigilance, and intrusive memories. Which diagnosis is most consistent with these symptoms?

A 16‑year‑old has been using marijuana daily for the past year and has developed increasing tolerance along with withdrawal symptoms when abstaining. Which diagnosis is most appropriate?

A core feature of Separation Anxiety Disorder in children, as per DSM‑V, is:

Which of the following is a core diagnostic criterion for Autism Spectrum Disorder (ASD) as per DSM‑V-TR?

Which of the following best characterizes Oppositional Defiant Disorder (ODD) as defined in the DSM‑V?

Lithification is __________________________.

True or False:  Fossils are commonly found in limestone, a non-clastic sedimentary rock.

The Sox9 gene was conditionally knocked out only in the developing gonads. Which of the following correctly describes the genotype and phenotype of these mice?