These changes can lead to sterile males or changes in behavior that prevent

These changes can lead to sterile males or changes in

This preview shows page 46 - 50 out of 58 pages.

These changes can lead to sterile males or changes in behavior that prevent mating from occurring. At the end of their study, scientists stated that they had supported their theory that agricultural chemical cause deformities.
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Selected Answer: False because they were testing a hypothesis not a theory. Answers: True based on the data collected during the study. False because they would need more data to prove a theory. False because they were testing a hypothesis not a theory. True because this was a controlled study. False because this was a controlled study. Response Feedback: correct Scientific meaning of theory Blooms Level: 2. Understand Gradable: automatic Learning Outcome: 01.03.03 Distinguish between a theory and a hypothesis. Section: 01.03 Topic: General Question 24 1 out of 1 points Which statement regarding the scientific method is false? Selected Answer: Original hypotheses are formed after an experiment. Answers: Original hypotheses are formed after an experiment. Inductive reasoning is used to form a hypothesis. Observations are used to form a hypothesis. Experiments need to be repeatable. The control and experimental group are identical except for one variable. Response Feedback: correct Scientific method Blooms Level: 2. UnderstandGradable: automaticLearning Outcome: 01.03.01 Identify the steps of the
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Gradable: automatic Learning Outcome: 01.01.02 Distinguish between the levels of biological organization. Section: 01.01 Topic: Biomes and Ecosystems Question 26 1 out of 1 points 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.
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These changes can lead to sterile males or changes in behavior that prevent mating from occurring. Which of the following statements would be considered a hypothesis for this study? Selected Answer: Agricultural chemicals cause deformities and feminization amongst cane toads. Answers: Amphibian populations are facing problems due to agricultural chemicals.
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