Stack #4445944
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| show | Landscape ecology
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| For mountain ranges that are subjected to prevailing winds, which of the following best explains why is the climate drier on the leeward (downwind) side? | show 🗑
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| Subtropical plants are common in Land's End, England, however, at the equivalent latitude of Labrador in coastal Canada, the local flora is instead subarctic. Which statement best explains why this apparent anomaly exists between North America and Europe? | show 🗑
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| show | Winters n summers would be more severe
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| show | The elimination of seasonal variation
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| show | Solar radiation strikes the poles at a lower angle and travels through more atmosphere
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| show | Temperate broadleaf forest n grassland
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| show | Solar radiation that warms moist air masses near the equator, which then cool and release precipitation as they rise, and then at high altitudes move north or south of the tropics and sink back to the surface as dry air masses
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| show | Light availability
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| If the direction of Earths rotation reversed, the most predictable effect would be | show 🗑
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| show | Tropical rainforest
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| Generally deserts are located in places where air masses are which of the following | show 🗑
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| show | The changes in the density of water as seasonal temps change
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| show | Lakes would suffer a nutrient depletion in surface layers
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| Which aquatic biome listed here is one of the most productive on earth and why | show 🗑
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| In most cases the two major climatic factors affecting the distribution of organisms in terrestrial ecosystems are | show 🗑
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| show | Desert
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| show | Many species are well adapted to survive periodic disturbances
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| show | The angle of earths axis with respect to the sun, combined w its orbit around the sun
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| show | Look at the climatic changes that occurred since the last ice age and how species redistributed as glaciers melted
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| show | Tundra
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| show | Convergent evolution
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| Population ecologists follow the fate of same-age cohorts to | show 🗑
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| A species population's size may vary depending on a number of factors including crowding and resource limitation. As N approaches K (carrying capacity) for a certain population, which of the following outcomes is predicted by the logistic growth model? | show 🗑
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| show | may change as environmental conditions change
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| Which of the following causes populations to shift most quickly from an exponential to a logistic population growth model? | show 🗑
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| show | high survival rates of offspring and the cost of parent care
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| show | offspring with good chances of survival
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| To determine the density of a rabbit population, one would need to know the number of rabbits and __________. | show 🗑
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| show | 1,600
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| During exponential growth, a population always | show 🗑
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| show | logged forest, because the disturbed forest affords more resources allowing some species populations to grow rapidly
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| A broad-based, pyramid-shaped age structure is characteristic of a population that is __________. | show 🗑
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| show | our technology has allowed the human population to keep increasing K
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| show | the ecological footprint of the US is large cuz per Capita resource use is high
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| show | 7.8 billion
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| The principle of competitive exclusion states that | show 🗑
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| Character displacement differs from resource partitioning because character displacement | show 🗑
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| show | sympatric populations of a species with similar ecological niches
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| Which of the following is an example of Mullerian mimicry? | show 🗑
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| Which of the following is an example of Batesian mimicry? | show 🗑
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| Which of the following is an example of aposematic coloration? | show 🗑
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| Which of the following is an example of a commensalism? | show 🗑
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| Which of the following would be most helpful in understanding the structure of an ecological community? | show 🗑
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| show | observe if the species expands its range after the removal of a competitior
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| show | elephants exhibit a disproportionate influence on the structure of the community re
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| show | Habitat is opened up for less competitive species
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| show | large and close to a mainland
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| show | tropical regions generally have more available water and higher levels of solar radiation
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| show | +/-
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| Using the symbols +, -, and 0 to indicate interspecific species interactions, where the first symbol refers to the first organism mentioned, which of the following claims/statements is correct? | show 🗑
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| show | P ← C
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| Which of the following behaviors results in keystone predators maintaining species diversity in a community? | show 🗑
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| Which of the following best explains why food chains are sometimes short? | show 🗑
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| show | tropical communities have higher sunlight and precipitation, and are generally older than temperate or polar communities
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| show | it is caused by pathogens that are transferred from other animals to humans by direct contact or by means of a vector
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| show | hosts in new environments have not had a chance to become resistant to the pathogen thru natural selection
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| Which of the following studies would provide the most reliable evidence to understand the mechanism of spread of H5N1 virus from Asia to North America? | show 🗑
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| show | eating meat is an inefficient way of acquiring photosynthetic prod
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| which of the following organisms is correctly paired with its trophic level | show 🗑
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| show | it provides conversion of organic matter from all trophic levels to inorganic compounds and makes them available for primary producers
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| In order to recycle nutrients, which of the following minimum components must an ecosystem have? | show 🗑
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| show | it is eliminated by feces or is dissipated into space as heat as result of cellular respiration consistent with the second law of thermodynamics
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| show | phosphorus is sometimes unavailable to producers due to leeching
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| show | heterotroph
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| show | matter can move from one ecosystem to another
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| show | the phosphorus cycle includes the weathering of rocks
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| The discipline that applies ecological principles to returning degraded ecosystems to a more natural state is known as | show 🗑
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| show | the rate of decomposition in the ecosystem
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| show | adding seeds of a chromium-accumulating plant to soil contaminated by chromium
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| Many of the organisms in the ocean are nutrient-limited. Which of the following would be the most reasonable approach if you wanted to investigate this phenomenon? | show 🗑
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| show | 0.01%
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| Which of the following ecosystems would likely have the largest net primary productivity per hectare and why? | show 🗑
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| show | Most of the nutrients in the ecosystem are removed in the harvested timber.
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| show | grasshopper - primary consumer
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| Which of the following are the main forms of energy inputs and outputs that move through an ecosystem? | show 🗑
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| show | as chlorophyll concentration per mililiter and as phytoplankton density in millions of cells per mililiter
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| show | because plants cannot fix N2
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| show | green plants and phytoplankton produce the oxygen we breathe
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| show | habitat loss, climate change
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| show | habitat alteration, fragmentation, and destruction
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| Which of the following threats to biodiversity impacts a specific species at one time, but also has the capacity to impact many other species due food-web interactions? | show 🗑
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| show | competing with native species for resources and displacing them
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| Which of the following best describes the biological significance of genetic diversity between populations? | show 🗑
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| If all individuals in the last remaining population of a particular frog species were all highly related, which type of diversity would be of greatest concern when planning to prevent the species from going extinct? | show 🗑
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| show | large animals with low intrinsic reproductive rates
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| show | genetic measurements indicate a loss of genetic variation over time
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| Which of the following is the most likely reason why establishing new nature reserves in current biodiversity hot spots may not necessarily the best choice? | show 🗑
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| Which of the following can be caused by nitrogen and sulfur oxide air pollutants, which are released during the burning of fossil fuels? | show 🗑
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| show | the amount of added nutrient that can be absorbed by plants without damaging ecosystem integrity
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| Which of the following observations provides the best evidence of a biodiversity crisis? | show 🗑
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| show | microbes may produce unique proteins useful in genetic research
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| Which of the following strategies was used to rescue Illinois prairie chickens from a recent extinction vortex? | show 🗑
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| If the sex ratio in a population is significantly different from 50:50, then which of the following statements will always be accurate? | show 🗑
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| Which of the following is the main purpose of movement corridors? | show 🗑
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| Brown-headed cowbirds utilize fragmented forests effectively by | show 🗑
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| show | the diversity could contain novel medications for consumers
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| How would evolution by natural selection influence the rate at which native predators, parasites, and pathogens attack an introduced species? | show 🗑
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| If a local population of a species goes extinct, which of the following outcomes is/are possible? | show 🗑
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| show | Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers.
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kingsleya27