Examlex
What is "hooking up?" How is it similar to or different from dating?
Head Control
The ability to hold and move one's head in a stable and directed manner, a developmental milestone in infants.
Neck Muscles
A group of muscles in the neck area that support the head, assist in movement, and aid in functions such as swallowing and speaking.
Mental Age
A measure of an individual's intellectual capacity compared to the average intellectual capacity of individuals in the same age group.
IQ
A measure of a person's intelligence as indicated by an intelligence test, relative to the average for their age group.
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