Which decade had, or is projected to have, the highest annual population increase?
  • 1980-1990
  • clumped
  • 1930 and 1975
  • flooding
Total population size is projected to increase through the middle of the 21st century.
  • *a parking lot is built, shrinking the habitat*wetlands are drained, decreasing the amount of available water*a species with the same food requirements is introduced
  • Supported
  • Not supported
  • clumped
During the 20th century, the human population increased from less than 2 billion to more than 6 billion.
  • flooding
  • Not supported
  • *a parking lot is built, shrinking the habitat*wetlands are drained, decreasing the amount of available water*a species with the same food requirements is introduced
  • Supported
According to this graph, the world population doubled between _______.
  • carrying capacity
  • N=1250, N=1500 + N+1000, N=750, N=500
  • 1980-1990
  • 1930 and 1975
Suppose that none of the 44 dolphins encountered in the second sampling had been photographed before.Would you be able to solve the equation for N? What might you conclude about population size in this case?
  • The number of people added to the population annually in each decade
  • density-dependent birth ratedensity-dependent death ratedensity-dependent birth ratedensity-independent death rate
  • The equation cannot be solved, but you would conclude that the population size is very large.
  • the size of the area in which they live
In wild populations, individuals most often show a _____ pattern of dispersion.
  • clumped
  • flooding
  • per capita population growth rate
  • A time span of 50 years
K increases
  • *a main competitor for food is eliminated, increasing food availability*an abandoned building creates more nesting areas
  • exponential growthabundant recourcesfaster as population size increasesno limit to population sizeIsabela island geckos
  • density-dependent birth ratedensity-dependent death ratedensity-dependent birth ratedensity-independent death rate
  • logistic growthlimited resourcesslows as population size increasescarrying capacityDaphne Major geckos
No effect on K
  • A time span of 50 years
  • carrying capacity
  • offspring live longer
  • logistic growthlimited resourcesslows as population size increasescarrying capacityDaphne Major geckos
The number of individuals that a particular habitat can support with no degradation of that habitat is called _____.
  • carrying capacity
  • flooding
  • A time span of 50 years
  • the size of the area in which they live
What is represented by the vertical blue bars on this graph?
  • low rates of offspring survival
  • the size of the area in which they live
  • A time span of 50 years
  • The number of people added to the population annually in each decade
In the models that describe population growth, r stands for _____.
  • the size of the area in which they live
  • low rates of offspring survival
  • N=1250, N=1500 + N+1000, N=750, N=500
  • per capita population growth rate
What is represented by the distance between two vertical white gridlines on this graph?
  • The number of people added to the population annually in each decade
  • A time span of 50 years
  • the size of the area in which they live
  • low rates of offspring survival
The rate of human population growth is increasing.
  • Not supported
  • *a parking lot is built, shrinking the habitat*wetlands are drained, decreasing the amount of available water*a species with the same food requirements is introduced
  • 1930 and 1975
  • Supported
S-shaped curve
  • *a main competitor for food is eliminated, increasing food availability*an abandoned building creates more nesting areas
  • logistic growthlimited resourcesslows as population size increasescarrying capacityDaphne Major geckos
  • density-dependent birth ratedensity-dependent death ratedensity-dependent birth ratedensity-independent death rate
  • exponential growthabundant recourcesfaster as population size increasesno limit to population sizeIsabela island geckos
density-dependent population regulation or density-independent population regulation?soay sheep? bridled gobies? Daphne Major geckos? Isabela Island geckos?
  • density-dependent birth ratedensity-dependent death ratedensity-dependent birth ratedensity-independent death rate
  • logistic growthlimited resourcesslows as population size increasescarrying capacityDaphne Major geckos
  • The equation cannot be solved, but you would conclude that the population size is very large.
  • *a main competitor for food is eliminated, increasing food availability*an abandoned building creates more nesting areas
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