Examlex
Assuming that each of the 52 cards in an ordinary deck has a probability of 1/52 of being drawn, what is the probability of drawing a black card?
Sodium
A chemical element (symbol Na) that is highly reactive and essential for nerve and muscle function in the human body, commonly found in salt.
Kidney Tubules
The small tubes in the kidneys where reabsorption and secretion occur, playing a crucial role in the formation of urine.
Potassium
A chemical element with the symbol K and atomic number 19, essential for many bodily functions, including normal heart and muscle function.
Melanocyte-Stimulating Hormone
A hormone produced by the pituitary gland that regulates skin pigmentation by promoting the production of melanin in melanocytes.
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