The Trait of Morningness-Eveningness

question 59

Multiple Choice

The trait of morningness-eveningness:

• A)often changes over time.
• B)remains stable over time.
• C)has been studied only in America.
• D)is correlated with anxiety.

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Definitions:

Acid Chlorides

Reactive derivatives of carboxylic acids where the hydroxyl group is replaced with a chlorine atom, used in organic synthesis.

Nitriles

Organic compounds containing the cyano group (-C≡N), which consists of a carbon atom triple-bonded to a nitrogen atom.

Bromo

A prefix in organic chemistry indicating the presence of a bromine atom in the compound.

Methylbutanoyl

An organic group derived from butanoic acid, often represented in molecules like esters or amides.