This completely revised, updated, and expanded edition has been neces sitated by the many important newer discoveries that have been made since the publication

Why a Book on Paramecium? Biologists usually concentrate their efforts on a single problem and a single organism. There is a difficulty with this practice, howe

The techniques used to decipher the genetic makeup of species as well as epigenetic mechanisms are essential for explaining life forms and studying their DNA. A

With over 11,000 authoritative and up-to-date entries, this best-selling dictionary covers all branches of psychology including psychoanalysis and psychiatry. C

Endosymbiosis is a primary force in eukaryotic cell evolution. In order to understand the molecular mechanisms involved in this mutualistic relationship, experi