Defines Population Unit 5 Lesson 19

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  • 1/30 Questions

    True or False. When all ideal conditions are met like sufficient food, shelter and water as well as space, the population can grow exponentially.

    • True
    • False.
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  • 2. 

    True or False. There are two factors limiting growth populations. 

    • True, they are: Density Independent Factors and Density-dependent factors

    • False, there are three: Density Independent Factors, density-dependent factors and density semi-independent factors.

    Correct Answer
    A. True, they are: Density Independent Factors and Density-dependent factors
  • 3. 

    True or False: Making a population estimate of animals is much more difficult than making a population estimate of plants. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Making a population estimate of animals is much more difficult because they void humans and are constantly moving in and out of a sampling area.

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  • 4. 

    What type of pattern of growth exhibit the population of larger animals that tend to have few offspring at a time, have a long lifespan and live in stable environments. 

    • J-shaped growth curve

    • Sigmoidal or S-shaped growth curve

    • None of the above

    Correct Answer
    A. Sigmoidal or S-shaped growth curve
  • 5. 

    ______________ is the potential for all populations to grow exponentially.

    • Antibiotic Potential

    • Biotic Potential

    • Biographical Potential

    • None of the Above

    Correct Answer
    A. Biotic Potential
  • 6. 

    The _________ is used to show the growth patterns for organisms controlled by density-independent factors

    • J-shaped growth curve

    • S-shaped growth curve

    • Sigmoidal growth curve

    • B and C are correct

    Correct Answer
    A. J-shaped growth curve
  • 7. 

    What are the two factors that will decrease population size.

    • Emigration and Death Rate

    • Immigration and Death Rate

    • Natality and Mortality

    • None of the above

    Correct Answer
    A. Emigration and Death Rate
  • 8. 

    Which statement best defines population?

    • A population is made up of all the living members of the same species in a given environment

    • A population is made up of certain living species in the popular environment

    • Population refers to people only

    • B and C are correct

    Correct Answer
    A. A population is made up of all the living members of the same species in a given environment
  • 9. 

    ___________ is when a population reaches its carrying capacity with its environment.

    • Equilibrium

    • Carrying Capacity

    • Mortality

    • None of the above

    Correct Answer
    A. Equilibrium
  • 10. 

    ____________ is the rate at which individuals die. It is also known as death rate.

    • Mortality

    • Natality

    • Capacity

    • B and C are correct

    Correct Answer
    A. Mortality
  • 11. 

    ___________ occurs when two species cannot co-exist, which results in the extinction of one of those species

    • Competitive exclusion

    • Friendly exclusions

    • Extinction

    • None of the above

    Correct Answer
    A. Competitive exclusion
  • 12. 

    __________ is the maximum population an environment can support.

    • Loading Capacity

    • Holding Capacity

    • Carrying Capacity

    • Equilibrium

    Correct Answer
    A. Carrying Capacity
  • 13. 

    True or False. The more samples used by scientist, the more confusing and less accurate the estimate of the actual population size. 

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Scientists estimate populations of an organism using sample counts. The more samples use, the more accurate the estimate of the actual population size.

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  • 14. 

    Which statement best defines Immigration?

    • Immigration is the movement out of an area

    • Immigration is the movement out and about an area.

    • Immigration is the movement in an area.

    • Immigration is the movement around an area.

    Correct Answer
    A. Immigration is the movement in an area.
  • 15. 

    ______________ is when the population size is still relatively small.

    • Growth Phase

    • Lag Phase

    • Exponential Phase

    • Tiny Phase

    Correct Answer
    A. Lag Phase
  • 16. 

    ____________ is the number of individuals in a population in a given space.

    • Population Density

    • Population Independence

    • Lag Phase

    • Growth Phase

    Correct Answer
    A. Population Density
  • 17. 

    Competition is _____________ when it is between members of different species.

    • Intraspecific

    • Interspecific

    • Competitive

    • None of the above

    Correct Answer
    A. Interspecific
  • 18. 

    Competition is ______________ when it is between members of the same species.

    • Intraspecific

    • Interspecific

    • Compettive

    • None of the above

    Correct Answer
    A. Intraspecific
  • 19. 

    _____________ is the average increase per year that occurs over a given period of time as a percentage of the total population at the end of the period. 

    • Average monthly increase

    • Average daily increase

    • Average annual increase

    • Average bi-annual increase

    Correct Answer
    A. Average annual increase
  • 20. 

    For larger plant species, scientist divide the are into sample units using _________.

    • Transects

    • Quadrats

    • Quadrants

    • Quintuplets

    Correct Answer
    A. Transects
  • 21. 

    What is the growth phase?

    • The growth phase is the first section of the graph.

    • The growth phase is often seen on the a growth curve on a graph.

    • The growth phase is often divided into a lag phase.

    • All of the above

    Correct Answer
    A. All of the above
  • 22. 

    When do we see the exponential phase on a graph?

    • When there is a rapid growth in population.

    • When there is relatively small growth in population.

    • When the exponent is growing in the population

    • C is definitely incorrect.

    Correct Answer
    A. When there is a rapid growth in population.
  • 23. 

    _____________________________ occurs when the population total starts to level off due to the limiting factors in its environment.

    • Environmental Resistance Phase

    • Environmental exponential phase

    • Lag Phase

    • B and C are correct

    Correct Answer
    A. Environmental Resistance Phase
  • 24. 

    Which statements are true about the Average Annual Increase?

    • The average annual increase allows scientists to compare the growth of similar populations in different regions.

    • It is also used to predict future growth.

    • The average annual increase is not necessary in finding population of organisms.

    • A and B are correct

    Correct Answer
    A. A and B are correct
  • 25. 

    When estimating a population of small plant species in an area, what type of division do scientists use?

    • Transects

    • Quadrats

    • Quandrant

    • Quintuplets

    Correct Answer
    A. Quadrats
  • 26. 

    Which statement best defines environmental resistance?

    • Environmental resistance refers to the limiting factors in an environment that prevent populations from reaching their full biotic potential.

    • Examples of environmental resistance are overcrowding, limited food, predators, and other obstacles.

    • Environmental resistance is when the environment resists man-made pollution by excreting excess carbon dioxide in the air.

    • A and B are correct.

    Correct Answer
    A. A and B are correct.
  • 27. 

    Which statements are true about density-dependent factors.

    • It is a type of control where the population's size increases, so does the demand for food.

    • Examples are organisms affected by density-dependent factors are large mammals such as whales.

    • All of the above

    • None of the above

    Correct Answer
    A. All of the above
  • 28. 

    What do scientist do first to estimate the population of animals in an area?

    • They play the flute to attract all the animals in their direction then tag all of them.

    • They make quadrats and transects in the area.

    • Only one sample of each species is capture and tagged.

    • A sample of animals is captured and tagged.

    Correct Answer
    A. A sample of animals is captured and tagged.
  • 29. 

    Which best defines natality.

    • Natality is the rate of reproduction.

    • Natality is the rate at which individuals die.

    • Natality is also known and birth rate.

    • A and C are correct

    Correct Answer
    A. A and C are correct
  • 30. 

    Which statements are true about density independent factors?

    • They are environmental conditions that influence population growth

    • Examples are weather patterns, fires, floods and earthquakes.

    • Density independent factors can be shown using J-shaped Curve

    • All of the above

    Correct Answer
    A. All of the above

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  • Mar 21, 2022
    Quiz Edited by
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  • Mar 16, 2010
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