True or false: Nearly all developed countries in the world are beginning a demographic transition in the 21st century.  * True or false: Human population growth has always been exponential.  * True or false: Most developed countries have passed through a demographic transition and currently have low population growth rates.  * True or false: A population can be clumped at one scale and uniform at another.  * Developed countries are characterized by  * True or false: The carrying capacity of a given geographic region for a single population can change over time.  * True or false: The human population may continue to increase even though it surpasses carrying capacity.  * Approximately 200 of the 300 native species of fish in Lake Victoria haven't been observed since the 1960s and are therefore probably extinct. Using the estimate of the background extinction rate, how many species of Lake Victoria fish would one expect to have naturally become extinct during the last 50 years?  * Global climate change is likely to increase the rate of extinction worldwide. The pollutant most implicated in this problem is  * In order to be considered extinct, a species can't be found  * Over the past 580 million years, biodiversity has  * The runoff of fertilizers from agricultural and residential areas can cause the aquatic algae in bodies of water to grow prolifically, resulting in a phenomenon called  * The sudden loss of a ________ would necessarily cause the loss of most or all of a food web.  * Cattle egrets hitch a ride on domestic cows and eat insects that are stirred up by their activity. This is an example of  * Teosinte is a wild grass in Mexico from which corn (maize) was originally domesticated. Corn that is grown commercially is probably  * During the 19th century, sea otters were hunted almost to the point of extinction. When the number of sea otters became very low, it was noticed that the ecosystem of kelp bed "forests" was also disappearing. It was discovered that the sea otters were predators of sea urchins, which were, in turn, predators of the kelp. When sea otters declined, the sea urchin populations grew, destroying the kelp ecosystem and the many species that depended on it. It was then understood that sea otters were ________ in this ecosystem.  * Is a species that has few individuals at greater risk of extinction than a species with a large population size? Why or why not?  * Earth's axis is tilted away from the sun during ________ and toward the sun during ________ in the Northern Hemisphere.  * The temperature of a city is often warmer than the temperature in its surrounding suburbs. This is the result of an urban heat island effect. What is one reason why this effect occurs?  * The dry deserts of Nevada are most influenced by  * France is at almost the same latitude as Nova Scotia. Why is France's climate so much milder?  * The amount of light received by a given unit area over time is called  * Regions that have ________ levels of .

1. True or false: Nearly all developed countries in the world are
beginning a demographic transition in the 21st century.
*
True or false: Human population growth has always been
exponential.
*
True or false: Most developed countries have passed through a
demographic transition and currently have low population
growth rates.
*
True or false: A population can be clumped at one scale and
uniform at another.
*
Developed countries are characterized by
*
True or false: The carrying capacity of a given geographic
region for a single population can change over time.
*
True or false: The human population may continue to increase
even though it surpasses carrying capacity.
*
Approximately 200 of the 300 native species of fish in Lake
Victoria haven't been observed since the 1960s and are therefore
probably extinct. Using the estimate of the background
extinction rate, how many species of Lake Victoria fish would
one expect to have naturally become extinct during the last 50
years?
*
Global climate change is likely to increase the rate of extinction
worldwide. The pollutant most implicated in this problem is
*
In order to be considered extinct, a species can't be found
*
Over the past 580 million years, biodiversity has
*

2. The runoff of fertilizers from agricultural and residential areas
can cause the aquatic algae in bodies of water to grow
prolifically, resulting in a phenomenon called
*
The sudden loss of a ________ would necessarily cause the loss
of most or all of a food web.
*
Cattle egrets hitch a ride on domestic cows and eat insects that
are stirred up by their activity. This is an example of
*
Teosinte is a wild grass in Mexico from which corn (maize) was
originally domesticated. Corn that is grown commercially is
probably
*
During the 19th century, sea otters were hunted almost to the
point of extinction. When the number of sea otters became very
low, it was noticed that the ecosystem of kelp bed "forests" was
also disappearing. It was discovered that the sea otters were
predators of sea urchins, which were, in turn, predators of the
kelp. When sea otters declined, the sea urchin populations grew,
destroying the kelp ecosystem and the many species that
depended on it. It was then understood that sea otters were
________ in this ecosystem.
*
Is a species that has few individuals at greater risk of extinction
than a species with a large population size? Why or why not?
*
Earth's axis is tilted away from the sun during ________ and
toward the sun during ________ in the Northern Hemisphere.
*
The temperature of a city is often warmer than the temperature
in its surrounding suburbs. This is the result of an urban heat
island effect. What is one reason why this effect occurs?
*
The dry deserts of Nevada are most influenced by
*

3. France is at almost the same latitude as Nova Scotia. Why is
France's climate so much milder?
*
The amount of light received by a given unit area over time is
called
*
Regions that have ________ levels of solar irradiance have
________ average temperatures.
*
Hypothetically, scientists could lower Earth's temperature by
________, in order to combat global warming.
*
Treatment of wastewater in industrial plants of developed
countries includes
*