Cochlear Implants Are Effective at Allowing Speech Comprehension If They

question 17

Multiple Choice

Cochlear implants are effective at allowing speech comprehension if they are implanted

• A) in adults who had learned spoken language prior to deafness, or congenitally deaf children by age 3.
• B) in adults, regardless of the onset of deafness.
• C) in children by age 5, regardless of the onset of deafness.
• D) in congenitally deaf children by age 5, or children to age 12 with milder hearing impairments.
• E) prior to age 12.

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Definitions:

Aldol Condensation

A chemical reaction that combines two aldehyde or ketone molecules, with the loss of water, to form a larger β-hydroxy aldehyde or ketone.

Synthesis

A process where complex compounds are formed from simpler substances through a series of chemical reactions.

Aldol Condensation

A chemical reaction in which an enol or an enolate ion reacts with a carbonyl compound to form a β-hydroxyaldehyde or β-hydroxyketone, followed by a dehydration to give a conjugated enone.

Major Organic Product

In a chemical reaction, the organic product that is formed in the greatest quantity, often the focus of synthesis and prediction in organic chemistry.