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22 Cards in this Set
- Front
- Back
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Force required to draw water from roots is provided by evaporation
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Tension-Cohesion theory
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Narrow range of environmental conditions to which an organism is suited.
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Optimum
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Lower level of euphotic zone. Lowest level of water or light where photosynthesis can balance respiration.
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Compensation Point
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Amount of light radiation that causes photosynthesis to reach a maximum level.
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Saturation Point
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Minimum moisture level of soil at which plants can obtain water.
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Wilting point/coefficient
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Amount of water soil can hold against gravity
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Field capacity
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Water potential generated by soil
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Matric potential
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Force by which water is held in soil by capillary and hygroscopic forces
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Water potential
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Referring to habitats with plentiful rainfall and well-drained soils
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Mesic
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Referring to habitats in which plant production is limited by the availability of water
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Xeric
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Rapid growth of algae in temperate lakes following the autumnal breakdown of thermal stratification and ixing of water layers
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Fall bloom
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Vertical mixing of water layers in temperate lakes in autumn following breakdown of thermal stratification
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Fall overturn
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Region within which surface currents of air meet near the equator and begin to rise under the warming influence of the sun.
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Intertropical convergence
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Tough,hard and often small leaves of drought-adapted vegetation
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Sclerophyllous
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Usually treeless plains, especially in southeastern Europe and Asia in regions of extreme temperature range and sandy soil.
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Steppe
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The narrow range of environmental conditions to which an organism is best suited
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Optimum
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Pertaining to or influenced by the soil
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Edaphic
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The range of conditions within which a species can survive
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Ecological tolerance
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Key component of understanding life histories of species?
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Trade-offs in resource allocations
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Give examples of allocation trade-offs.
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Allocation to resource a precludes allocation to b. Larger seeds mean less.
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Enviro changes. what can an organism alter?
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Behavior, Development, physiology, or life history traits.
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Relationship btwn phenotype of an individual and the environment
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Reaction norm
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