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If you observed a gas cloud orbiting in a disk of a spiral galaxy that was located 10,000 pc from the center and it rotated with a speed of 300 km/s,what is the mass of the galaxy interior to gas cloud's orbit?
Hormone
A chemical substance produced in the body that controls and regulates the activity of certain cells or organs.
Experimental Starvation
A research setting where an organism is deliberately deprived of food for a period of time to study the physiological and psychological effects.
Re-fed
Refers to the process of reintroducing food to a person or animal after a period of fasting or severe undernutrition.
Set-Point
A hypothetical ratio of fat to lean tissue at which a person’s weight will tend to stabilize.
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