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2. Which statement best explains the effect of resources on population size?
a. the exponential growth curve models the effects of limiting resources on population size
b. Limited resources decrease the growth rate of population size
c. Density-dependent factors invariably lead to a positive DN
d. all of the above

26. The relationship between population growth and resources can be described as
a. inverse; as one goes up the other goes down
b. parallel; when one goes up so does the other
c. complex; there are many contributing factors
d. equal; they both level off in any population

11. Solar energy can be trapped in the atmosphere by
a. the chemical bonds of carbon dioxide
b. the chemical bonds of ozone
c. radiation
d. sunlight
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