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Biology, 21.06.2019 20:00
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
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Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?
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Which anatomical plane is the only one that could not show both the sternal region and vertebral region
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Which is an example of how stem cells are currently being used...
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