Examlex
Which of the following best describes how the appearance of a star changes as it evolves after becoming a white dwarf?
Promotion Period
A specific time frame during which marketing efforts or special offers are intensified to stimulate sales or awareness.
Hydrostatic Pressure
The pressure exerted by a fluid at equilibrium due to the force of gravity acting upon it.
Filtration Membrane
A biological or synthetic membrane that acts as a selective barrier, allowing some substances to pass while blocking others, especially used in filtering substances from the blood in the kidneys.
Nephron
The basic structural and functional unit of the kidney, responsible for filtering blood and producing urine.
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