Examlex
The global loss of topsoil each year is greater than the amount that is created each year.
Endocrine System
A network of glands in the body that secrete hormones directly into the circulatory system to regulate the body's growth, metabolism, and sexual development and function.
Billion
A numerical value equal to 1,000 million in the American system, and 1,000,000 million in systems that use the long scale.
Adult Brain
The matured human brain, fully developed and capable of complex cognitive, emotional, and behavioral processing.
Cells
The basic structural, functional, and biological units of all living organisms.
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