Poaceae groups, using the C3 and C4 photosynthetic pathways for carbon fixation. The C4 grasses have a photosynthetic pathway, linked to specialized Kranz leaf anatomy, which allows for increased water use efficiency, rendering them better adapted to hot, arid environments and those lacking in carbon dioxide. The C3 grasses are referred to as "cool-season" grasses, while the C4 plants are considered "warm-season" grasses. The grass family is one of the most widely distributed and abundant groups of plants on Earth. Grasses are found on every continent, including Antarctica with the presence of Antarctic hair grass on the Antarctic Peninsula. Grasses are
The Behavior of Organisms The Behavior of Organisms The Behavior of Organisms is B.F. Skinner's first book and was published in May 1938 as a volume of the Century Psychology Series. It set out the parameters for the discipline that would come to be called the experimental analysis of behavior (EAB) and Behavior Analysis. This book was reviewed in 1939 by Ernest R. Hilgard. Skinner looks at science behavior and how the analysis of behavior produces data which can be studied, rather than acquiring data through a conceptual or neural process. In the book, behavior is classified either as respondent or operant behavior, where