
Population Ecology
Presentation
•
Biology
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8th - 10th Grade
•
Medium
Standards-aligned
Mariela Wyatt
Used 121+ times
FREE Resource
34 Slides • 13 Questions
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Multiple Choice
Researchers have found that a local squirrel population fluctuates from year to year, increasing one year and decreasing the next. Which of the following factors would cause the squirrel population to grow?
the birth rate is equal to the death rate
emigration is greater than immigration
the death rate is higher than the birth rate
the birth rate is greater than the death rate
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Multiple Choice
Two species of finches are in competition for the limited resources of an ecosystem. One species eats fruit and the second species eats seeds. If a third species of herbivore finches moves into the area, how will the ecosystem change?
Resources will be more abundant.
Water will become more available.
The climate of the ecosystem will change.
Fruit and seed resources will become less abundant.
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Multiple Choice
A population of flat-tailed horned lizards was found in a geographically isolated area. In 2002, the size of the population was about 25,500. In 2004, the size of the population was about 32,800. Which of the following statements explains the change in the size of the lizard population from 2002 to 2004?
The birth rate was greater than the death rate.
The emigration rate was greater than the birth rate.
The death rate was greater than the immigration rate.
The emigration rate was greater than the immigration rate.
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Multiple Choice
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Multiple Choice
Which of the following graphs shows a population of organisms with a carrying capacity?
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Multiple Choice
Which of the following is an exponential graph?
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Multiple Choice
Define "carrying capacity"
any factors in an environment that are limited
when population increases slowly at first then grow at an accelerated rate
minimum number of individuals of a species that an environment can support
maximum number of individuals of a species that an environment can support
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Multiple Choice
Define "limiting factor"
anything that constrains a population's size and slows or stops it from growing
when population increases slowly at first then grow at an accelerated rate
minimum number of individuals of a species that an environment can support
maximum number of individuals of a species that an environment can support
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Multiple Choice
Which of the following is NOT a density dependent limiting factor?
competition
parasitism
disease
natural disaster
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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