Test Tube Rack
Inside the villus capillary of the intestine
Crystallographic comparison of the estrogen and progesterone receptor's ligand binding domains.
chromosomes
The stomach
3D rendering of a #15 scalpel incising skin to reveal fat
Bar Graph animation showing white blood cell percentages with a macrophage bouncing on the graph
T4 Bacteriophage (Virus)
Rib cage animated to show how ribs move during "quiet breathing"
T4 bacteriophage penetrating cell membrane
