BIO 220 EXAM 2 STUDY GUIDE DISTINCTION PREPAREDNESS

BIO 220 EXAM 2 STUDY GUIDE DISTINCTION PREPAREDNESS 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 lectures to study effectively. Do not concentrate solely on the definitions. Population Growth and Environment  Factors that limit population size (disease, war, famine, etc.) o Population growth is checked by famine, disease, and cultural factors (e.g., late marriage). o Regulate the population through cultural taboos, abstinence and infanticide.  The effects of population on the environment are not due to numbers alone. o I = PAT ▪ I = environmental impact ▪ P = population size ▪ A = affluence ▪ T = technology  Carrying capacity (K) o the 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