Bio 220 Exam 2 Study Guide Exam Preparations: Mastery

Bio 220 Exam 2 Study Guide EXAM PREPAPRATIONS: MASTERY Directions: This study guide was created from the exam bank of questions. It is designed to give indications about what concepts will be important to review in preparation for the midterm. Use the PowerPoint slides along with reading the textbook and notes taken during lecture to study effectively. Do not concentrate solely on the definitions. Population Growth and Environment Factors that limit population size (disease, war, famine, etc.) oPopulation growth is checked by famine, disease, and cultural factors (e.g., late marriage). oRegulate population through cultural taboos, abstinence and infanticide. Effects of population on the environment are not due to numbers alone. oI = PAT I = environmental impact P = population size A = affluence T = technology Carrying capacity (K) othe maximum number of individuals that the environmental resources of a given region can support. Physical carrying capacity = packing density, limited only by space and resources Cultural carrying capacity is always less Malthus vs. Marx oMalthus Human population growth causes environmental degradation Thomas Malthus (1798) wrote An Essay on the Principle of Population in which he showed that human populations increase exponentially.oKarl Marx Human population growth results from poverty