Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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Which of the following is NOT one of the factors that play a role in population
growth rate?
a. | immigration | c. | emigration | b. | death rate | d. | demography |
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2.
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One of the main characteristics of a population is its
a. | change over time. | c. | dynamics. | b. | geographic distribution. | d. | habitat. |
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3.
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Sea otters are important to the populations of
a. | kelp. | c. | killer whales. | b. | sea urchins. | d. | all of the
above |
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4.
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There are 150 Saguaro cactus plants per square kilometer in a certain area of
Arizona desert. To which population characteristic does this information refer?
a. | growth rate | c. | age structure | b. | geographic distribution | d. | population
density |
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5.
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What does the range of a population tell you that density does not?
a. | the number that live in an area | c. | the births per unit
area | b. | the areas inhabited by a population | d. | the deaths per unit
area |
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6.
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Which of the following tells you population density?
a. | the number of births per year | b. | the number of frogs in a
pond | c. | the number of deaths per year | d. | the number of bacteria per square
millimeter |
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7.
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The movement of organisms into a given area from another area is called
a. | immigration. | c. | population shift. | b. | emigration. | d. | carrying
capacity. |
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8.
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When organisms move out of the population, this is known as
a. | emigration. | c. | immigration. | b. | abandonment. | d. | succession. |
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9.
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What must occur in a population for it to grow?
a. | The birthrate becomes higher than the death rate. | b. | The birthrate stays
the same and the death rate increases. | c. | The birthrate becomes lower than the death
rate. | d. | The birthrate and the death rate remain the same. |
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10.
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What is happening in a population as it decreases?
a. | The birthrate and the death rate remain the same. | b. | The death rate
becomes lower than the birthrate. | c. | The death rate stays the same and the birthrate
increases. | d. | The death rate becomes higher than the birthrate. |
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11.
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When individuals in a population reproduce at a constant rate, it is
called
a. | logistic growth. | c. | exponential growth. | b. | growth density. | d. | multiple
growth. |
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12.
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As resources in a population become less available, the population
a. | declines rapidly. | c. | reaches carrying capacity. | b. | increases
slowly. | d. | enters a phase of
exponential growth. |
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13.
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In a logistic growth curve, exponential growth is the phase in which the
population
a. | reaches carrying capacity. | c. | growth begins to slow
down. | b. | grows quickly. | d. | growth stops. |
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14.
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All of the following are limiting factors EXCEPT
a. | immigration. | c. | predation. | b. | competition. | d. | human
disturbances. |
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15.
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Which of the following is NOT likely to be a limiting factor on the sea otter
population?
a. | disease | c. | drought | b. | competition | d. | predation |
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16.
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Which will reduce competition within a species’ population?
a. | fewer individuals | c. | fewer resources | b. | higher birthrate | d. | higher population
density |
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17.
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If a population grows larger than the carrying capacity of the environment,
the
a. | death rate may rise. | c. | death rate must fall. | b. | birthrate may
rise. | d. | birthrate must
fall. |
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18.
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Water lilies do not grow in desert sand because water availability to these
plants in a desert is
a. | a limiting factor. | c. | a competition factor. | b. | the carrying
capacity. | d. | none of the
above |
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19.
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Each of the following is a density-dependent limiting factor EXCEPT
a. | competition. | c. | crowding. | b. | seasonal cycles. | d. | disease. |
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20.
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Which would be least likely to be affected by a density-dependent limiting
factor?
a. | a small, scattered population | b. | a population with a high
birthrate | c. | a large, dense population | d. | a population with a high immigration
rate |
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21.
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Which of the following is a density-independent limiting factor?
a. | earthquake | c. | emigration | b. | disease | d. | parasitism |
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22.
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A disease resulting in the deaths of one third of a dense population of bats in
a cave would be a
a. | density-dependent limiting factor. | c. | density-independent limiting
factor. | b. | result of exponential growth. | d. | nutrient-limiting
factor. |
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23.
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Human population growth has slowed down in
a. | China. | c. | India. | b. | the United States. | d. | Africa. |
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24.
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Demography is the scientific study of
a. | parasitism and disease. | c. | human
populations. | b. | modernized countries. | d. | none of the above |
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25.
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Demographic transition is change from high birthrates and high death rates
to
a. | exponential growth. | c. | a low birthrate and a high death rate. | b. | a low birthrate and
a low death rate. | d. | indefinite growth. |
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26.
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About 500 years ago, the world’s population started
a. | decreasing. | c. | growing more rapidly. | b. | to reach carrying
capacity. | d. | to level
off. |
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27.
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Countries in the first stage of demographic transition have
a. | a low death rate and a high birthrate. | c. | a slowly growing
population. | b. | a high death rate and a low birthrate. | d. | more old people than young
people. |
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28.
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The human population experienced exponential growth after
a. | agriculture began. | c. | the bubonic plague began. | b. | plowing and
irrigation began. | d. | the
Industrial Revolution began. |
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29.
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Which country has not yet completed the demographic transition?
a. | United States | c. | Great Britain | b. | India | d. | Japan |
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30.
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In countries like India, the human population is growing
a. | exponentially. | c. | logistically. | b. | transitionally. | d. | demographically. |
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31.
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Most of the worldwide human population is growing exponentially because
a. | human populations have not reached their exponential curve. | b. | most countries have
not yet completed the demographic transition. | c. | human populations do not conform to the
logistic model. | d. | the food supply is limitless. |
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32.
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How can a diagram of a population’s age structure predict how it can
grow?
a. | It shows how many people are at reproductive ages. | b. | It shows how many
people will probably die within a few years. | c. | It shows how many people are entering the
population by birth. | d. | all of the
above |
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