Which of the following statements would be considered a hypothesis for this

Which of the following statements would be considered

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changes in behavior that prevent mating from occurring. Which of the following statements would be considered a hypothesis for this study? A. Amphibian populations are facing problems due to agricultural chemicals.B. Toxins are causing diseases and deformities within many amphibian populations.C. Toads collected from suburbs had fewer deformities compared to toads collected from agricultural areas. D. Agricultural chemicals cause deformities and feminization amongst cane toads.E. More male toads from the large-scale agricultural areas showed signs of feminization. Blooms Level: 5. EvaluateGradable: automatic
Learning Outc
ome: 01.03.03 Distinguish between a theory
 and a hy
pothesis.Sec
tion: 01.03Topic
: General
Image of page 16
38. Populations of amphibians, including frogs and toads, have been plagued by disease and high rates of deformity. A recent study investigated whether problems among the populations have arisen due to poisons from chemicals associated with agriculture. Biologists from the University of Florida collected local adult cane toads ( Bufo marinus ) from more than 20 different locations. Toads were collected from areas close to agriculture; both large-scale and small-scale farms as well as from suburbs. At collection sites where 50-97% of the adjacent land was farmed, males showed high levels of feminization. Feminized male toads were similar in color to females and had lower levels of testosterone and often also deformed gonads. These changes can lead to sterile males or changes in behavior that prevent mating from occurring. Based on this study, what is the control group? A. male toads collected from the suburbs B. male toads collected from areas near large-scale farmsC. male toads collected from small-scale farmsD. male toads collected from all the different sitesE. female toads collected from all the different sites Blooms Level: 5. EvaluateGradable: automatic
Learning Outc
ome: 01.03.02 Desc
ribe the basic
 requirements for a c
ontrolled experiment.Sec
tion: 01.03Topic
: General
Image of page 17
39. Populations of amphibians, including frogs and toads, have been plagued by disease and high rates of deformity. A recent study investigated whether problems among the populations have arisen due to poisons from chemicals associated with agriculture. Biologists from the University of Florida collected local adult cane toads ( Bufo marinus ) from more than 20 different locations. Toads were collected from areas close to agriculture; both large-scale and small-scale farms as well as from suburbs. At collection sites where 50-97% of the adjacent land was farmed, males showed high levels of feminization. Feminized male toads were similar in color to females and had lower levels of testosterone and often also deformed gonads. These changes can lead to sterile males or changes in behavior that prevent mating from occurring. Based on this study, what is/are the test group(s)? A. male toads collected from the suburbsB. male toads collected from areas near large-scale farmsC. male toads collected from small-scale farmsD. male toads collected from all the different sitesE. female toads collected from all the different sites Blooms Level: 5. EvaluateGradable: automatic
Learning Outc
ome: 01.03.03 Distinguish between a theory
 and a hy
pothesis.Sec
tion: 01.03Topic
: General
Image of page 18
40. Populations of amphibians, including frogs and toads, have been
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  • Summer '12
  • EstherMuehlbauer
  • Biology

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