Jack, Jim, and Justin All Have Intellectual Disabilities

question 56

Multiple Choice

Jack, Jim, and Justin all have intellectual disabilities. Jack's mother was a chronic alcoholic. Jim's mother beat him on the head repeatedly when he was an infant. Justin was born prematurely and suffered from a lack of oxygen at birth. The cause of intellectual disabilities for all three boys is due to ____.

• A) unknown factors
• B) nongenetic biological factors
• C) genetic factors
• D) environmental factors

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Definitions:

Trans Double Bond

A type of double bond where the substituents are on opposite sides, resulting in a more linear and less polar structure compared to cis double bonds.

Melting Point

The temperature at which a solid substance transitions to a liquid state, indicative of purity for pure substances.

Molecular Weights

A measure of the total mass of atoms in a molecule, calculated as the sum of the atomic masses of all atoms in the molecule.

Compound

A substance formed by the chemical combination of two or more elements in fixed proportions.