What Is a Planetary Nebula

question 34

Multiple Choice

What is a planetary nebula?

• A) a planet surrounded by a glowing shell of gas
• B) the disk of gas and dust surrounding a young star that will soon form a star system
• C) the ejected envelope of a giant star surrounding the remnant of a star
• D) a type of young, medium-mass star
• E) leftover gas from a supernova explosion

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Definitions:

Connective Tissues

A group of tissues in the body that maintain the form of the body and its organs and provide cohesion and internal support.

Stratified Columnar

Stratified columnar epithelium is a type of tissue composed of multiple layers of columnar cells, designed to protect or secrete substances in certain areas of the body.

Widespread Epithelium

A term not specifically recognized in medical terminology but suggests epithelial tissue that covers a large or broad area.

Rare

Uncommon or infrequent in occurrence; something that is not found in a high frequency or quantity.