Examlex
By what factor is the intensity of sound at a rock concert louder than that of a whisper when the two intensity levels are 120 dB and 20 dB respectively?
Respiratory Systems
The set of organs responsible for gas exchange between the blood and external environment, primarily facilitating breathing and oxygenation of the blood.
Brain Cells
Specialized cells in the brain that are responsible for processing information, including neurons and glial cells.
Toxin
A poisonous substance produced within living cells or organisms; can be harmful or fatal if absorbed by the body.
Prenatal Development
The stage of human development that occurs from conception until birth, encompassing physical, cognitive, and emotional changes in the embryo and fetus.
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