Cepheids Are Types of Stars That Regularly Change How Bright

question 55

Multiple Choice

Cepheids are types of stars that regularly change how bright they are over a period of a few

• A)days.
• B)months.
• C)year.
• D)decades.

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Definitions:

Phosphorus

A chemical element with the symbol P, essential for life, involved in the formation of DNA, cell membranes, and bone and teeth structure.

Nucleic Acids

Complex organic substances that carry genetic information, consisting of two main types: DNA and RNA.

ATP

For the purpose of metabolism, ATP, a molecule, is essential in moving energy across cells.

Iodine

A chemical element essential for the production of thyroid hormones, which regulate metabolism and are crucial for growth and development.