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Lampreys (sometimes also called lamprey eels) are a family of jawless fish
The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland.
Vision. Normal vision and vision problems.
Cerebral angiography. The four angiograms each reveal the distribution of blood vessels supplying th
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
The illusory bands visible in this figure are often called Mach bands, although Mach used a ...