Diabolical Disease
a disease caused by a pathogen
Infectious Disease
the buildup of large concentrations of poisons in the body
Bioaccumulation
matter or energy that is harmful to the environment
Pollution
a powerful storm that forms over the ocean in the tropics
Hurricane
all of the population in a particular area
Community
a chemical that causes cancer
Carcinogen
a chemical that can damage the nervous system
Neurotoxin
the effect on an organism of exposure to a pollutant or other hazardous substance
Response
an opening in Earth’s crust through which molten lava, ash, and gases are ejected
Volcano
the pattern of population growth in which exponential growth is slowed and finally stopped by limiting factors
Logistic growth
a disease that is appearing in the human population for the first time or that has existed for a while, but is spreading rapidly
Emerging diseases
a substance or disease that prevents a fetus or embryo from developing normally
Teratogen
the increased concentration of pollutants at each step up a food chain
Biomagnification
a large ocean wave produced by an earthquake or other disturbance on the ocean floor
Tsunami
the process by which bacteria use energy stored in bonds of hydrogen sulfide to convert carbon dioxide and water into sugars
Chemosynthesis
Pathogen
the degree to which a substance is harmful to an organism
Toxicity
a mineral that forms long, thin, microscopic fibers; used as an insulator against heat and sound
Asbestos
a type of windstorm in which a funnel of rotating air drops down from a storm cloud and touches Earth’s surface
Tornado
a relationship between two organisms from different species in which both organisms benefit
Mutualism
the study of disease in human populations
Epidemiology
the study of how poisons affect an organism’s health
Toxicology
the level of exposure to a pollutant or other hazardous substance
Dose
the rapid movement of snow sliding down a slope
Avalanche
the ability to survive and reproduce under changing environmental conditions
Tolerance