Environmental Health Exam #1 Questions with Correct Answers 100% Verified

Environmental Health Exam #1 Questions with Correct Answers 100% Verified Define Environmental Health - Correct Answer - Environment = complex of physical, chemical, & biotic factors that act upon an organism or ecological community & ultimately determine form & survival - Environmental Health = addresses all the physical, chemical, & biological factors external to the person, & all the related factors impacting behaviors -- encompasses control of environmental factors & aims to prevent disease Is environmental health a global issue? - Correct Answer Yes: pollution crosses boundaries; infectious disease; food safety -- only a small percentage actually tested Define Ecosystem - Correct Answer - "Dynamic complex of plant, animal, & microorganism communities & the nonliving environment interacting as a functional unit" - Natural systems that function as a unit - The Ecological Model: proposes that the determinants of health interact & are interlinked over the life course of individuals Define Natural Population Fertility Rate - Correct Answer Keeps populations stable - in the US, about 2.1 births per woman Causes of population growth: increases in fertility, reductions in mortality, migration Understand & estimate the global disease burden attributable to environmental sources - Correct Answer 25-33% What is meant by "sensitive subpopulations"? - Correct Answer Very young, women of childbearing age, very old, immune compromised What factors confer sensitivity to examples of these subpopulations? - Correct Answer - Young: immune systems not well developed, behavioral actions, dependence on others, rapidly growing - Women of childbearing age: concern with child being carried - Old: neurodegeneration, immune system doesn't work as well - Immune compromised: vibrio