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from article Goat production
Domesticated goats (Capra hircus) raised for meat goat production. (Photo by Susan Boyer, Agricultural Research Service, U.S. Department of Agriculture)
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from article Goat production
Close-up view of a Saanen goat. (Photo by Milan Kořínek)
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from article Goat production
Mechanical (automatic) milking of a purebred Nigerian Dwarf dairy goat on an elevated stand. (Photo courtesy of Lesa Wilke, Bramblestone Farm, Ohio; www.bramblestonefarm.com)
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from article Blowpipe
Glassblower blowing into a blowpipe to shape molten glass. (Credit: Hero Images/Getty Images)
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from article Tin
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from article Tin
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from article Isoelectric point
Titration of alanine with sodium hydroxide (NaOH), showing the course of pH with added fractional equivalents. The four arrows show, from left to right, the pKa [½ cations: NH3+(CH3)COOH, and ½ zwitterions: NH3+(CH3)CHCOO−], the pl (all…
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from article Isoelectric point
Course of the charges carried by lysine (pKa = 2.18) molecules in dilute aqueous solution with pH during a titration with alkali. Shown are the net charge, going from +2 at low pH to +1 between pH 4.5 and 6.5, the isoelectric point at pH 9.74, the…
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from article Apple
Empire apple (Malus pumila). (Credit: Peggy Greb/Agricultural Research Service, United States Department of Agriculture)
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from article Apple
Apple trees in an orchard in late autumn. (Credit: Sandrine Bouvier/Alamy)
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from article Wood anatomy
Annual tree rings are distinct features of wood anatomy. The combined concentric bands of light and dark areas can help investigators to determine the age of a tree. (Credit: DrimaFilm/Shutterstock)
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from article Wood anatomy
Light micrograph of a section through the stem of a lime tree (genus Tilia). The pith is at the center and is surrounded by a layer of wood (xylem). A thin cambium separates this from the phloem. An outer layer of collenchyma is enclosed by the…
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from article Wood anatomy
Structure of a typical hardwood. (Credit: U.S. Department of Agriculture)
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from article Wood anatomy
Structure of a typical softwood. (Credit: U.S. Department of Agriculture)
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from article Iridium
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from article Potato
Potato (Solanum tuberosum), also known as the Irish potato. (Credit: Peggy Greb/Agricultural Research Service, U.S. Department of Agriculture)
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from article Potato
Diagram of a potato plant. (Credit: Potato Association of America)
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from article Potato
Potato tubers infected by late blight (caused by Phytophthora infestans). (Credit: G. D. Franc)
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from article Persian melon
Persian melon (Cucumis melo). (Photo by Mehrdad Aref-Adib)
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from article Human ecology
Shacks and garbage along a dirty river in a slum in Manila, Philippines. Human ecology encompasses how individual people and their communities interact with their particular environment. In many cases, though, humans have created polluted…
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from article Human ecology
Burning of a tropical rainforest in Brazil in order to clear land for animal grazing. (Credit: Barry Barker; copyright © McGraw Hill)
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from article Absorption
Incident sunlight is absorbed, reflected, and scattered by tree leaves. (Credit: Shutterstock / photolinc)
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from article Bioorganic chemistry
Vancomycin and an analog that is active against vancomycin-resistant bacteria.
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from article Bioorganic chemistry
Foldamers that mimic proteins.
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from article Bioorganic chemistry
The rate of this intramolecular lactonization, relative to that of intermolecular esterification, mimics the rate increase caused by an enzyme's binding and orienting substrates for a bimolecular reaction.
