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The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland.
Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
This pediatric growth chart tracks the height and weight for girls ages 2–20.
Vocational interests seem to be established well before adulthood, and young people of all ages ...
The brains of animals of different evolutionary ages