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Course Criteria
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4.00 Credits
An introductory study of the classification, nomenclature, and identification of 30-40 common families of flowering plants, with particular emphasis on the local native flora and nearby areas. Field trips and a plant collection are required. Prerequisite: BIOL 261. 3 hours lecture. 3 hours laboratory and field trips. 4 semester hours
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4.00 Credits
A lecture and laboratory course in microbiology for biology majors and premedical students. The classification, structure, function, and metabolism of the major groups of microorganisms including prokaryotes, eukaryotes, archaebacteria, and viruses are discussed. The course places special emphasis on the relationship between microorganisms and man. Topics include host parasite relationships, the immune system, and the role of microorganisms in human diseases. Prerequisites: BIOL 262 and CHEM 255/257. Credit may be obtained for only one of the following courses: BIOL 219 or BIOL 319. 3 hours lecture. 3 hours laboratory. 4 semester hours
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4.00 Credits
This is a discussion of both cellular and humoral immunity and their interrelationships. The first half of the course will specifically address cells of the immune system, their lymphokine products, structure and function of antigens and antibodies, and the production and use of monoclonal antibodies. The second half of the course examines mechanisms of microbial virulence and host immune response, tolerance, autoimmunity, trends in vaccine development, allergy, immunodeficiency diseases, and the human immunodeficiency virus. The laboratory part of the course will include exercises in the areas of basic histology, immunofluorescence microscopy, cell culture, monoclonal antibody production, purification, quantitation, and the response of lymphoid tissue to bacterial pathogens and inert particulate antigens. Prerequisite: BIOL 261. 3 hours lecture. 3 hours laboratory. 4 semester hours
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3.00 Credits
This course reviews in depth the structure and function of the major organ systems of the human body: integumentary, skeletal, muscular, respiratory, cardiovascular, excretory, digestive, neurosensory, endocrine, immunological, and reproductive. Special emphasis is placed on how the various organ systems are interrelated and the homeostatic control mechanisms, which maintain a healthy individual. This course does not satisfy any biology or science elective requirements for a biology major. Prerequisites: CHEM 105 or equivalent; two courses in biology, at least one of which must be a course in anatomy and physiology. Corequisite: CHEM 205. 3 hours lecture. 3 semester hours
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4.00 Credits
Currently, human physiology is a rapidly advancing field of study largely due to the advances that occurred in the last three decades in the fields of cell and molecular biology. This course emphasizes the function of organ systems and their impact on whole body functions as well as the molecular and cellular mechanisms underlying them. The course is designed to facilitate the acquisition of problem-solving and high-level cognitive skills in the context of human physiology. The course is divided into six units; each unit corresponds to one or two physiological systems. The units are (1) cell physiology, (2) excitable tissue (muscular and nervous systems), (3) the endocrine system and bioenergetics, (4) the cardiovascular and respiratory systems, (5) urinary system (kidney function; fluid, electrolyte, and acid-base balance), and (6) the digestive system. Many of the laboratory exercises involve use of computer models, computerized data acquisition, and computerized data analyses. Prerequisite: BIOL 261, CHEM 255. 3 hours lecture. 3 hours laboratory. 4 semester hours
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4.00 Credits
The course will focus on form-function relationships in extant mammals and related fossil forms. The course will survey the morphology of all the mammals, with special emphasis on insectivores, carnivores, rodents, primates, and ungulates (mammals with hooves). The goal is to familiarize students with the diversity of form in mammals and to correlate that variation with differences in behavior and ecology. Particular attention will be paid to the morphology of the musculoskeletal, digestive, and neurosensory systems in the context of locomotion and acquisition of food. The laboratory will allow for detailed morphological examination of a rodent, a carnivore, and an ungulate herbivore, as well as field trips to examine mammals in the field and in captivity. Prerequisite: BIOL 261. 3 hours lecture. 3 hours laboratory. 4 semester hours
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4.00 Credits
This course introduces the basic computational concepts and methods used in molecular biology and molecular genetics, and introduces students to the analysis of genetic sequences. The course discusses available computational tools for extracting biological information from DNA and protein sequences. It also provides a brief introduction to bioinformatics algorithms. The course teaches Biopython (Python for computational molecular biology) programming language in the UNIX environment. Does not satisfy upper-division biology elective requirement. Prerequisite: BIOL 262. 3 hours lecture. 5 hours laboratory. 4 semester hours
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3.00 Credits
This course examines the nature, evolution, structural and functional components, and relationships that exist within tropical forests worldwide. Abroad range of topics covering the physical, biological, and chemical aspects of tropical environments are explored. Specific topics include forest succession and architecture, tropical microclimate, vertical organization of canopy biota, evolution of tropical plants, tropical parasites, decomposition and nutrient cycling, plant/animal coevolutionary interactions, survival strategies, and the evolutionary history of tropical forests. This course is open to upper division biology and environmental science majors. Prerequisites: BIOL 161, 162. 3 hours lecture. 3 semester hours
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2.00 Credits
This laboratory course is the field component of BIOL/ENVR 340. Students design and carry out a research project that is completed during a one-week fieldtrip experience in a tropical forest environment. Students develop a research question and conduct an extensive literature search on a topic pertaining to tropical ecology prior to traveling to the research site. Students work closely with the instructor(s) to ensure that they are able to complete a project during the week-long field experience. After the project has been completed, students are responsible for analyzing and writing their results as if they intend to submit their research to a journal for publication. Students present their findings to the Widener community or at a regional or national meeting. This course is open to upper-division biology and environmental science students. Upper-division students from other majors within the sciences may be allowed to enroll with the permission of the instructor. Prerequisites: BIOL 161, 162. Corequisite: BIOL/ENVR 340. A total of 35 hours prior to the field experience and 45 hours in the field. 2 semester hours
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3.00 Credits
Individual investigation of a problem in biology. Projects are smaller in scope than those undertaken in BIOL 499. Lab work, computation, readings, and orals as appropriate. Scope, topic, and prerequisites to be arranged individually. Credit to be arranged
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