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Chapter 44: Q 4. (page 1293)
Which of the following is a biotic factor?
a. wind
b. disease-causing microbe
c. temperature
d. soil particle size
The Correct Answer is Option (b)
Disease-causing microbe
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Compare and contrast how natural- and human-induced processes have influenced global climate change.
A population is an important unit in ecology as well as other biological sciences. How is a population defined, and what are the strengths and weaknesses of this definition? Are there some species that at certain times
or places are not in populations?
Predict possible consequences if carbon emissions from fossil fuels continue to rise.
Which of the following is an example of a weather event?
a. The hurricane season lasts from June 1 through November 30.
b. The amount of atmospheric CO2 has steadily increased during the last century.
c. A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999.
d. Deserts are generally dry ecosystems having very little rainfall.
Which of the following biomes is characterized by short growing seasons?
a. deserts
b. tropical wet forests
c. Arctic tundras
d. savannas
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