Yuri Is Interested in Finding Out Whether Exercise Affects Boys

question 155

Multiple Choice

Yuri is interested in finding out whether exercise affects boys' and girls' performance on a memory task. The dependent variable in this situation is

• A) memory performance.
• B) the amount of exercise.
• C) the age of the children.
• D) gender.

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Definitions:

Lignin

Lignin is a complex organic polymer found in the cell walls of many plants, making them rigid and woody, and is crucial for the plant's structural integrity.

Vascular Tissue

A complex tissue in plants consisting of xylem and phloem, responsible for the transport of water, minerals, and sugars throughout the plant.

Ephedra

A shrub-like plant used historically in traditional medicines and known for its stimulant properties.

Gnetophytes

A group of seed plants that are characterized by unique features distinguishing them from other gymnosperms, with three distinct genera: Gnetum, Welwitschia, and Ephedra.