Disk No: 1725 Disk Title: BSIM PC-SIG Version: S1 Program Title: BSIM Author Version: 1.00 Author Registration: $29.95 Special Requirements: CGA, EGA, HGA adapter. BSIM is a program that college and high school biology instructors will find especially interesting. For classrooms with PCs, BSIM can simulate pseudoecological systems to be used as analogs to actual biological systems. The model for the program is an aquatic ecosystem, but it is intended that generalized features of this ecosystem be used to conceptualize a broader range of ecosystems. Providing basic subject matter is covered in class, the program provides fun, illustrative learning reinforcement, and encourages mental manipulation of conceptual elements well beyond calculation-phase minutes. The $29.95 registration fee will net the user technical data and program utilities to assist program analysis, and an experimenter's manual for ten experiments. BSIM allows sampling of stagnant and circulated flask environments open or closed to oxygen and carbon-dioxide atmospheres, choice of light and dark, depth, and choice of sample location according to grid. Apparently, temperature and Ph are assumed constant and optimum. Essentially, "pseudogenomes" are intended to be abstractions of real organisms with morphology and physiology determined by 13 "mutable" pseudogenome elements which can be set by the user. Organism metabolism is intended to utilize a simplified carbon chemistry, and the organisms are apparently capable of reproduction or reduction with sampling possible at each generation. The program allows for new organisms or "reseeding" of old ones at first generation, and a readout of solution elements for the sample taken. BSIM has a simple printer facility and easy menus. System Requirements: CGA, EGA, HGA adaptor. PC-SIG 1030D East Duane Avenue Sunnyvale Ca. 94086 (408) 730-9291 (c) Copyright 1989 PC-SIG, Inc.