The Period-Luminosity Relationship for Cepheid Variables Was Discovered by

question 29

Multiple Choice

The period-luminosity relationship for Cepheid variables was discovered by

• A) John Goodricke
• B) Henrietta Leavitt
• C) Edward Pickering
• D) Henry Norris Russell
• E) Annie Cannon

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Definitions:

Renal Artery

The blood vessels that supply the kidneys with blood rich in oxygen and nutrients.

Renal Vein

A blood vessel that carries filtered blood away from the kidney to the inferior vena cava.

Kidney

A pair of organs located in the abdominal cavity responsible for filtering blood, removing waste, and balancing bodily fluids.

Kidney

A vital organ in the body responsible for filtering waste from the blood, regulating blood pressure, and balancing fluids and electrolytes.