These images from the Smithsonian Institution depict Nancy Knowlton's work with snapping shrimp in Panama. Knowlton found that the closing of the isthmus -- dividing the Pacific Ocean from the Caribbean -- resulted in new species of shrimp.
This course will look at the various mechanisms of evolution, how these mechanisms work, and how change is measured. The course will begin by reviewing the evolutionary concepts of selection and speciation. The student will then learn to measure evolutionary change and look at the history of life according to the fossil record and a discussion of the broad range of life forms as they are currently classified. Upon completion of this course, students will be able to: define evolution and describe different types of selection; provide examples of microevolutionary forces and describe how they impact the genetics of populations; describe the Hardy-Weinberg principle and solve problems related to Hardy-Weinberg equilibrium; provide examples of games used in evolutionary game theory; connect biological phenomena to game theory; develop simple phylogenies from molecular or morphological data; identify important evolutionary events that have occurred throughout geologic time; characterize and provide examples of major plant and animal phyla. (Biology 312)
This is an interactive textbook on principles of The Physical Environment. The Physical Environment is one of the first, totally online physical geography learning environments. The Physical Environment combines text, images, audio and video programs to deliver the subject matter content. A multimedia online environment enables new and different ways to interact with textbook content.
