The Distance of a Star from the Earth Can Be

question 37

Multiple Choice

The distance of a star from the earth can be found

• A) only if it is part of a double-star system.
• B) by comparing its luminosity and brightness.
• C) from its color.
• D) from its position in the HR diagram.

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Definitions:

Red Blood Cells

Cells in the blood that carry oxygen from the lungs to all parts of the body and return carbon dioxide to the lungs for exhalation.

Transporting Oxygen

The primary function of the respiratory and circulatory systems, allowing oxygen to be inhaled into the lungs, carried by red blood cells, and delivered to tissue.

Tissue Cells

The basic structural and functional units of tissues in living organisms, varying widely in structure and function based on their location and task.

Coagulation

The process of blood changing from a liquid to a gel, forming a blood clot, which is an essential part of hemostasis to stop bleeding.