Bees (family: Apidae) are important ecologically and economically as primary pollinators of many natural and agricultural systems. Given current concerns about declining numbers of bees, many ...

Students learn about sampling by tracing improvements in sampling procedures over the twentieth century. Scientific inquiries involving flawed sampling are illustrated and discussed using the Literary ...

The solidity of concrete, the taste of chocolate, or the solubility of drugs – these are just a few examples of chemical or physical material properties which are affected by particle size. Thus, the ...