lation at midyear. It gives the average slice of the
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economic pie per person.
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infant mortality rate
the number of babies out of every 1,000 born who die before their first birthday
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renewable resource
Resource that can be replenished rapidly (hours to several decades) through natural processes as long as it is not used up faster than it is replaced
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nonrenewable resource
Resource that exists in a fixed amount (stock) in the earth's crust and has the potential for renewal by geological, physical, and chemical processes taking place over hundreds of millions to billions of years.
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total fertility rate
number of children who would be born per woman if she were to pass through childbearing years according to current fertility rates
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replacement level fertility
total fertility rate that leads to each new generation being less populous than the previous.
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crude birth rate
annual number of live births per 1000 people in a population
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crude death rate
annual number of deaths per 1000 people in a population
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tragedy of the commons
depletion or degradation of a potentially renewable resource to which people have free or unmanaged access
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crude births-crude deaths/1000\=r
percent rate of growth equation
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positive feedback loop
Feedback loop that causes a system to change further in the same direction
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negative feedback loop
Feedback loop that causes a system to change in the opposite direction from which is it moving
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pre-industrial
which stage in demographic transition?
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birth and death rates high, population low
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transitional
which stage in demographic transition?
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birth rate high, death rate dropping, population rising
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industrial
which stage in demographic transition?
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birth rate dropping, death rate low, population high
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post-industrial
which stage in demographic transition?
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birth and death rates low, population high
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gamma, x-ray, ultraviolet, visible, infrared, microwave, radio
arrange the following types of electromagnetic radiation in order from highest to lowest energy:
list the following types of visible light in order from shortest to longest wavelength:
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green, orange, red, yellow, blue, violet
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type I
name the survivorship:
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late loss, juvenile survival high, mortality in older individuals
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type II
name the survivorship:
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constant loss, individuals die at equal rate regardless of age
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type III
name the survivorship:
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early loss, high mortality of juveniles, but lower in older individuals
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type I
name the survivorship
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type II
name the survivorship
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type III
name the survivorship
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greenhouse effect
Natural effect that releases heat in the atmosphere (troposphere) near the earth's surface. Water vapor, carbon dioxide, ozone, and other gases in the lower
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atmosphere (troposphere) absorb some of the infrared radiation (heat) radiated by the earth's
layers of the atmosphere in order from closest to surface to farthest from surface
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troposphere
Innermost layer of the atmosphere. It contains about 75% of the mass of earth's air and extends about 17 kilometers (11 miles) above sea level
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stratosphere
Second layer of the atmosphere, extending about 17-48 kilometers (11-30 miles) above the earth's surface. It contains small amounts of gaseous ozone (O3), which filters out about 95% of the incoming harmful ultraviolet radiation emitted by the sun
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12500
humans began agriculture approximately \__________ years ago
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anthropogenic
a man-made product is known as \____________
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03
molecular formula for ozone
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hydrochlorofluorocarbons
chemicals which contain only H, C, F, and Cl. Used as a refrigerant in place of CFC's. Have a shorter life span and deliver less reactive Cl to the stratosphere than CFC's.
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rock
largest reservoir of carbon
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atmosphere
largest reservoir of nitrogen
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rock
largest reservoir of phosphorus
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4.5 billion years
approximate age of the earth
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generalist species
species with a broad ecological niche. They can live in many different places, eat a variety of foods, and tolerate a wide range of environmental conditions.
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specialist species
Species with a narrow ecological niche. They may be able to live in only one type of habitat, tolerate only a narrow range of climatic and other environmental conditions, or use only one type or a few types of food.
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invasive species
Species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans
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keystone species
Species that play roles affecting many other organisms in an ecosystem
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indicator species
Species that serve as early warnings that a community or ecosystem is being degraded
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endemic species
Species that is found in only one area. Such species are especially vulnerable to extinction.
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invasive
the zebra mussel is a \_________ species
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generalist keystone
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specialist indicator
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invasive endemic
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keystone
the american alligator is a \__________ species
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generalist keystone
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specialist indicator
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invasive endemic
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generalist
the norway rat is a \___________ species
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generalist keystone
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specialist indicator
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invasive endemic
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endemic
the galapagos tortoise is a \___________ species
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generalist keystone
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specialist indicator
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invasive endemic
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indicator
the tiger salamander is a \___________ species
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generalist keystone
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specialist indicator
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invasive endemic
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specialist
the giant panda is a \___________ species
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biodiversity
variety of different species, genetic variability among individuals within each species, variety of ecosystems, and functions such as energy flow and matter cycling
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biome
terrestrial region inhabited by certain types of life, especially vegetation
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climate and geography
what determines the type of biome an area will have?
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ethiopia
controls nile river- diverts large part of it
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brazil
largest area of tropical rainforest by country
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bangladesh
country with the largest delta in the world
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ganges delta
largest delta in the world
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tropical rainforest
name the biome:
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steady high temps and lots of rain, located near equator, dense canopy, chimpanzees, toucans, frogs, cheetahs
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temperate deciduous forest
name the biome:
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defined seasons, moderate rainfall, located midlatitudes, trees, hawks, deer, foxes, owls