To understand biochemical reactions, measurement of stoichiometry is crucial. This is because these reactions depend on the interaction of at least two cellular components. Measuring these ...

Vol. 39, No. 2, Special Issue: The Conceptual and the Empirical - expanding STS (March 2014), pp. 192-213 (22 pages) Published By: Sage Publications, Inc. The dichotomy between the conceptual and the ...

Intraspecific variation is abundant in all types of systematic characters but is rarely addressed in simulation studies of phylogenetic method performance. We compared the accuracy of 15 phylogenetic ...

Biologists discuss findings from an investigation of genetic mutations in seven species of North American stick insects (Timema) resulting in cryptic coloration. Traits that form an organism's ...