Contributors in Science
Science > General science 
automotive vehicle
Science; General science
Electric vehicles competed head to head with gasoline cars around the beginning of the twentieth century but soon faded from the marketplace. They failed in the United States and ...
cell membranes
Science; General science
Cells maintain their content separate and distinct from the external environment by a semifluid lipid bilayer that prevents the free exchange of most biological molecules and acts ...
fluorocarbon
Science; General science
Any of the organic compounds in which all of the hydrogen atoms attached to a carbon atom have been replaced by fluorine; also referred to as a perfluorocarbon. Fluorocarbons are ...
risk analysis (homeland security)
Science; General science
Applying risk analysis to strategies against terrorism requires an innovative combination of approaches. Assessing the risk of terrorism (which is dynamic and adaptable) is ...
energy metabolism
Science; General science
Energy metabolism, or bioenergetics, is the study of energy changes that accompany biochemical reactions. Animals, plants, and bacteria require energy to sustain life. Energy ...
fossil apes
Science; General science
Apes and humans are closely related primates in the superfamily Hominoidea. The living hominoids are subdivided into the families Hylobatidae and Hominidae. The hylobatids or ...
speciation and hybrid incompatibility genes
Science; General science
Biological diversity arises through speciation—the evolution of two species from a single common ancestor. Under the standard (allopatric) speciation model, new species begin as ...
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