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LSA 311 exam 1

Terms in this set (28)

dominant climax plants tend to be tolerant of competition from many other plant species
True
stable landscape settings may be the result of regularly occurring disturbances.
True
A species is a category of self-replicating genetic material which changes little over time
False
Dissipation of sound is influenced by humidity in the air.
False
Natural Heritage Programs are run by the federal government within the U.S
False
Soil characteristics are influenced by the type of plant growth that occurs on them.
True
a species ranked S4 by the Natural Heritage Program can also be ranked G1
False
a soil could be nutrient rich, have an adequate supply of capillary moisture, have good internal drainage, and still not support vigorous plant growth.
True
soils with high organic content are more compressible than soils with high mineral content
true
intolerant plant species native to a particular ecological community are more likely to be found growing on the edge of that community than in the middle of it
false
dominant pioneer plants tend to be tolerant of competition from many other plant species.
true
most states lack detailed maps showing plant cover by ecological community
true
dominant plants often create the habitat within which less dominant plants live.
true
nitrates are a natural by-product from decomposition of organic matter in soils.
true
a high concentration of electron deficient H+ ions in a soil means the soil is acidic
true
soils with high alkalinity exhibit slower plant growth than do soils with neutral pH.
true
convection of heat away from the body s what makes it feel chilly when standing in front of a glass window or door during the winter.
False
if the earths axis were perpendicular to its orbit around the sun, then all latitudes of the earth would have a similar climate.
False
most new species arise following periods of environmental turmoil.
true
designing for microclimate is mainly about managing exposure to wind.
false
US policy regarding natural resource management changed significantly after World War II as a result of increases in leisure time and income for many americans.
true
high pitch sounds dissipate better in vegetated landscapes than do low pitch sounds
true
habitat fragmentation increases species diversity over regional landscapes
false
on a clear night the moon will appear yellowish in color when seen near the horizon and whiter when seen in the night sky
true
the public land survey system was mainly bookkeeping system for converting public land into privately owned land.
true
nitrates are mineral based nutrient which is extracted from mines and refined into fertilizer.
false
thermal EM radiation reradiated at night from dense materials like brick, rock, or concrete can make an outdoor setting feel much warmer than the actual temperature of the air
True
the speed with which water percolates through soil is directly related to the size of the pore spaces within the soil.
true
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