The Long-Term Ecological Research sites (LTER) collectively focus on studying
A) natural successional changes in ecosystems.
B) the effects of various types of human disturbances to ecosystem function.
C) how to make invasive species profitable for agriculture.
D) the creation of artificial soils for ecosystems lacking producers.
B
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Gentrification typically
A) leads to the renovation of older buildings. B) raises property values. C) displaces original occupants. D) leads to the renovation of older buildings, raises property values, and displaces original occupants.
Carbon dioxide levels in the atmosphere are rising due to the burning of fossil fuels. How might this
increased level of carbon dioxide affect rates of weathering? What will be an ideal response?
Predict whether Iran or Iraq will have the most economic growth in the future
What will be an ideal response?
Which of the following amines serve as a building block for the amine bases of DNA and RNA?
A) purine B) pyrimidine C) both a and b D) neither a nor b