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WorksheetsPopulations
Total questions: 21
Worksheet time: 13mins
the number of births per 1,000 individuals for a certain time period.
birth rate
death rate
immigration
emigration
the number of deaths per 1,000 individuals for a certain time period.
birth rate
death rate
immigration
emigration
movement of individuals into a population's area
birth rate
death rate
immigration
emigration
movement of individuals out of a population's area
birth rate
death rate
immigration
emigration
the number of individuals in an area of a specific size.
limiting factor
population density
carrying capactiy
emigration
an environmental factor that causes a population to decrease in size.
limiting factor
population density
carrying capactiy
emigration
the largest population that a particular environment can support.
limiting factor
population density
carrying capactiy
emigration
What might happen if the earth exceeds its carrying capacity?
There might not be room for people to move around.
There might not be enough food and water for everyone.
The continents might sink into the oceans.
Most of the people on the planet would starve.
Which of the following describes a population?
The total number of people, animals, and plants in New York City
The total number of houses in Atlanta
The total number of people living in the state of Texas
The total number of fish in all the world's oceans
If the world population keeps growing at its current rate, how many people might be alive in 10 years?
14 million
22 billion
Between 7 and 8 billion
1.5 trillion
Why would advances in medicine lead to population growth?
Curing deadly diseases allows people to live longer
People are unable to have babies without medical help
Babies do not grow if they don't take their medicine
New drugs allow mothers to have multiple births, like octuplets
Before 1800, the infant mortality rate was much higher than it is now. What does that mean?
People didn't have a lot of babies before 1800
Children did not grow very tall before 1800
Most women were unable to have babies before 1800
A lot more babies died during childhood before 1800
How can population growth lead to more pollution?
Too many people breathing causes too much carbon dioxide to enter the atmosphere
The body heat generated by billions of people leads to an increase in global warming
More people being born means more paper is needed to print birth certificates
All people produce waste, so more people equals more waste
In the graph to the right, what is the population of deer at the carrying capacity of the environment?
3
7
70
40
When a population grows past the ecosystem's carrying capacity, what happens to the population?
It continues to grow higher and higher.
The population starts to die off and returns to the carrying capacity.
The population will go extinct due to lack of resources.
The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?
It will decrease.
It will increase.
It will remain the same.
The picture to the right represents a sunny, dry desert.
Which factor most likely limits the desert’s carrying
capacity for plant life?
the number of animals that eat plants
the amount of sunlight
the availability of space to grow
the availability of water
In a large Maine forest with many animals and lots of space, there are only a small number of bears. Which of these most likely limits the population of bears in the forest?
cloud cover in the atmosphere
space
supply of food
types of trees in the area
