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Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
In this painting evangelist George Whitefield appears to be cross-eyed. This is no fault of John Wol
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
People whose behaviors violate norms are often called mentally ill. “Why else would they do such ...
The nucleus is bounded by a double membrane called the nuclear envelope
A thin cleft, called the synapse, separates one cell from another.