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The specialized arrangement of tissues in the small intestine.
The small-scale distribution of different tree species in a Douglas-fir forest is determined by both
Illustration showing how the primary breast tumor metastasized through the lymphatic and blood vesse
An inguinal hernia. A portion of the small intestine is protruding through the abdominal muscles int
Capillary puncture sites.
Models of the lac repressor and its binding to operator sites in DNA