Why Do Your Ears Sometimes Pop When You Go Up

question 60

Multiple Choice

Why do your ears sometimes pop when you go up in an airplane?

• A)There are fewer air molecules pushing against the outer surface of your ear drum.
• B)There are more air molecules pushing against the outer surface of your ear drum.
• C)The atmospheric pressure is changing.
• D)You probably haven't removed your headphones.

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Definitions:

Cytokinesis

Cytokinesis is the process during cell division where the cytoplasm of a parental cell is divided into two daughter cells.

Microtubules

Cylindrical structures found in cells that are involved in maintaining cell shape, enabling cell movement, and facilitating cell division.

Centrioles

Cylindrical cell structures involved in the process of cell division and in the formation of the cell’s cytoskeleton.

Mitosis

A process of cell division in which a single cell divides to produce two genetically identical daughter cells.