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Food coloring. A variety of food colorings, added to beakers of water. Food coloring, color additive or colorant is any dye, pigment, or substance that imparts color when it is added to food or beverages. Colorants can be supplied as liquids, powders, gels, or pastes. Food coloring is commonly used in commercial products and in domestic cooking ...
The book introduced the concept of frequency-dependent selection, as when edible mimics are less frequent than the distasteful models whose colours and patterns they copy. In the book, Poulton also coined the term aposematism for warning coloration, which he identified in widely differing animal groups including mammals (such as the skunk ...
Geobiology employs molecular biology, environmental microbiology, organic geochemistry, and the geologic record to investigate the evolutionary interconnectedness of life and Earth. It attempts to understand how the Earth has changed since the origin of life and what it might have been like along the way.
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. [ 1] Phytogeography is the branch of biogeography that studies the ...
Books about or featuring the environment as a prominent theme have proliferated especially since the middle of the twentieth century. The rise of environmental science , which has encouraged interdisciplinary approaches to studying the environment, and the environmental movement , which has increased public and political awareness of humanity's ...
Butter. Solid and melted butter. Butter is a dairy product made from the fat and protein components of churned cream. It is a semi-solid emulsion at room temperature, consisting of approximately 80% butterfat. It is used at room temperature as a spread, melted as a condiment, and used as a fat in baking, sauce -making, pan frying, and other ...
Hearing of a case of head lice is enough to give anyone the heebie-jeebies, but the thought of eating lice is really enough to make the skin crawl -- yet unknown to most people, we do that almost ...
Ethnobiology. Logo for the Society of Ethnobiology. Ethnobiology is the scientific study of the way living things are treated or used by different human cultures. It studies the dynamic relationships between people, biota, and environments, from the distant past to the immediate present. [ 1]