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30 Cards in this Set
- Front
- Back
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When the temperature of the outside air exceeds their internal body temperature, jack rabbits living in hot , arid lands |
Constrict the blood vessels in their large ears to reduce transfer of external heat to the blood in their ears. |
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Positive feedback differs from negative feedback in that… |
the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite to it |
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In a survivable cold environment, an ectotherm is more likely to survive an extended period of food deprivation than would an equally sized endotherm because the ectotherm |
invests little energy in temperature regulation |
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The temperatureregulating center of vertebrate animals is located in the |
hypothalamus |
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Standard metabolic rate (SMR) and basal metabolic rate (BMR) are… |
both measured in animals in a resting and fasting state. |
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Hibernation and estivation during seasons of environmental stress are both examples of |
torpor |
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uses internal control mechanisms to moderate internal change in the face of external, environmental fluctuation. |
Regulator |
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allows its external condition to vary with certain external changes. |
Conformer |
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is the adjustment of metabolic heat production to maintain body temperature |
Thermogenesis |
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the overall flow and transformation of energy in an animal |
Bioenergetics |
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a group of populations of different species in an area |
Community |
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a group of individuals of the same species living in an area |
Population |
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consists of pattern on the global, regional, and landscape level |
Macroclimate |
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consists of fine patterns in which a small community experiences |
Microclimate
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Which area of study focuses on the exchange of energy, organisms, and materials between ecosystems |
landscape ecology |
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Turnover of water in temperate lakes during the spring and fall is made possible by which of the following? |
the changes in the density of water as seasonal temperatures change |
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Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be: |
the elimination of seasonal variation |
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Which of the following are important biotic factors that can affect the structure and organization of biological communities? |
predation, competition |
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Fire suppression by humans |
can change the species composition within biological communities. |
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Which zone experiences the most abiotic change over a 24 hour period? |
Neritic zone |
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Population ecologists are primarily interested in |
understanding how biotic and abiotic factors influence the density, distribution, size, and age structure of populations |
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A population is correctly defined as having which of the following characteristics? I. inhabiting the same general area II. belonging to the same species III. possessing a constant and uniform density and dispersion |
I and II only |
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During the spring, you are studying the mice that live in a field near your home. The population density is high, but you realize that you rarely observe any reproductive female mice. This most likely indicates |
that you are observing immigrant mice. |
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the pattern of spacing among individuals within the boundaries of the population. |
Dispersion |
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the study of the vital statistics of a population and how they change over time. |
Demography |
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the number of individuals per unit area of volume. |
Density |
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Which of the is the most important assumption for the capture-recapture method to estimate the size of wildlife populations? |
Marked individuals have the same probability of being recaptured as unmarked individuals during the recapture phase |
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Carrying capacity is |
the maximum population size that a particular environment can support |
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Which of the following could be a densityindependent factor limiting human population growth? |
earthquakes |
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An ecological footprint is a construct that is useful |
for a person living in a developed nation to consider to make better choices when using global food and energy resources |
