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An example of color blindness test. A person with red-green color blindness would not be able to dis
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Evolution of Primate Species
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Synthesis of proteins on the endoplasmic reticulum.
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Development of an atherosclerotic plaque that progressively narrows the lumen of an artery to the po
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Diadophis punctatus regalis
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Position of shunt to drain fluid in hydrocephalus.
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Western pygmy possum
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Each cell nucleus throughout the body contains the genes, DNA, and chromosomes that make up the ...
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The Dederiyeh I infant from Syria preserves nearly the entire skeleton of a 17- to 19- month-old Nea
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Epigenetics in Breast Cancer
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A large female tiger shark (Galeocerdo cuvier)
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Oceanic Deposits
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Left: This web was woven by a 17-day-old spider, showing regular patterns. Right: This web was woven
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The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport.
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Scrubbers
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A treatment for blocked blood vessels.
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The human skeleton
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The ovarian and uterine cycles in a human female.
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Tiger quoll sleeping at the window of the nocturnal animals exhibit at Sydney Wildlife World
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From Wheat Kernel to Flour
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Locations and reference zones of trigger points that cause headaches. A. Upper trapezius. B. ...
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White blood cells
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Fossils of hand and foot bones of Homo naledi
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Four kinds of evidence supporting the theory that species evolve.
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The structure of the placenta.
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Baby Gorilla versus Baby Human
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Human Karyotype
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The beautiful blood vessels of the human body
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Witches finger grapes
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Single-cell circulation model
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Gas exchange
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With the research technique called brainbow, each neuron is labeled with a different color, ...
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The span of Homo sapiens sapiens’ time on earth
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Salivary glands
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