A Researcher Is Testing the Effects of Sunlight on Depression

question 19

Multiple Choice

A researcher is testing the effects of sunlight on depression. The dependent variable is and the independent variable is

• A) sunlight; depression
• B) depression; sunlight
• C) sunlight; mood
• D) depression; mood

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Definitions:

Nucleoside

A compound consisting of a nitrogenous base bound to a sugar molecule, forming the basic building blocks of nucleic acids without the phosphate group.

Sucrose

A sugar molecule consisting of glucose and fructose, widely recognized as sugar used on dining tables.

Sweetener

A substance used to provide sweetness to foods or beverages, often with fewer calories compared to regular sugar, including natural and artificial types.

Ribonucleosides

Compounds consisting of a nucleoside attached to a ribose sugar, which are basic building blocks of RNA.