What's in the Water?
Evolution
Populations
Approaching 7 billion!
Inconvenient Truths
100
Element that accumulates in the bodies of fish and causes nerve damage in humans
What is mercury?
100
Scientist who is credited with the theory of evolution by natural selection
Who is Charles Darwin?
100
General term for something in the environment that limits a population
What is a limiting factor?
100
Country with the largest population
What is China?
100
Effect of the atmosphere that keeps heat close to the earth
What is the greenhouse effect?
200
Process in which too many nutrients, such as nitrogen and phosphorus, get into an aquatic ecosystem, causing an algae bloom and subsequent oxygen depletion
What is eutrophication?
200
A change in the DNA of an organism; provides genetic variation on which natural selection can work
What is a mutation?
200
The maximum number of individuals in a population that the environment can support
What is carrying capacity?
200
Diagram that represents the percent of males and females in each age category in a population
What is a population pyramid or age structure diagram?
200
The main greenhouse gas produced by the burning of fossil fuels
What is carbon dioxide?
300
Term for a disease-causing agent, such as a bacterium or virus
What is pathogen?
300
Process in which two species evolve together
What is coevolution?
300
Meaning of the "r" in r-selected
What is intrinsic rate of increase?
300
Study of populations
What is demography?
300
Method used by scientists to determine past carbon dioxide levels of the atmosphere
What are ice cores?
400
Measure of the cloudiness of water
What is turbidity?
400
Type of speciation that involves geographic isolation of two popuations and then reproductive isolation (the definition of a new species)
What is allopatric speciation?
400
Term for the capacity for growth of a population; depends on generation time, frequency of reproduction, number of offspring
What is biotic (or reproductive)potential?
400
Mathematical way to determine doubling time
What is the Rule of 70?
400
International group that prepared reports on global warming from the scientific reports that were available; awarded Nobel Peace Prize with Al Gore in 2007
What is the IPCC (Intergovernmental Panel on Climate Change)?
500
Name of the dispersant chemical that was used in the Gulf of Mexico to break up the oil
What is Corexit?
500
The full potential range of physical, chemical and biological conditions and resources that a species could theoretically use if there were no direct competition
What is fundamental niche?
500
Term for type of population control that has its effect, no matter what the population size; examples are weather, natural catastrophes, habitat destruction by people
What are density-independent factors?
500
Name for the third stage of the Demographic Transition Model
What is the Industrial Stage?
500
Measure of the ability of a greenhouse gas to add to the greenhouse effect; carbon dioxide is a 1 and methane is a 23
What is global warming potential?
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