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Related Flashcards
Cards In This Set
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Evidence indicating that the brown tree snake was the culprit in the disappearance of birds and small reptiles from the island of Guam is:
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The snake is extremely common and eats a variety of prey
Areas where the snake was present matched areas where birds disappeared
Birds and lizards were not disappearing from neighboring islands where the snake was not present
No known insecticide or disease was killing the animals
e. All of the above are correct
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The number of new individuals produced per unit time in a population is its:
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Birth rate
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Density-independent factors that affect a population's growth by exerting effects unrelated to population density are:
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Volcanoes
Floods
Earthquakes
Oil spills
e. All of the above are correct
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A population with a large fraction of postreproductive individuals
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Will most likely decrease in size
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The physical location where an organism lives is termed its
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Habitat
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In the equation G = rN that is used to study populations, "G" represents:
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The number of individuals added per unit time
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In regards to a species "life history," k-selected species
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A. Have only a few offspring
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The study of the factors that influence changes in a population's size is:
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Have a large number of offspring
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Conditions whose growth-limiting effects increase as a population grows:
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Are density-dependent factors
Include competition for needed resources
e. Both B and C are correct
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The ways by which members are added to or removed from a population include:
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Birth
Death
Emigration
Immigration
e. All of the above are correct
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The combination of external factors that keep a population from reaching its maximum growth rate is:
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Environmental resistance
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In the equation G = rN that is used to study populations "N" represents:
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The number of individuals at the start of the time interval
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The maximum number of individuals that a habitat can support indefinitely is the habitat's:
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Carrying capacity
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In a survivorship curve, a type I species is a species that:
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Has the highest probability of dying as it reaches its maximum life span
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A chart that shows the probability of surviving to any given age is termed a:
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Life chart
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