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Three principle forms of natural selection: (a) stabilizing selection, (b) directional selection, an
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Scheme of the principle of the fluorescent in situ hybridization to localize a gene in the nucleus.
The growth of GHG emissions is greatest in the rapidly growing economies of India and China
Physics - Pressure, Density, Pascal's Principle