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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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Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content
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Biology, 22.06.2019 11:00
The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian
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What makes amino acids unique from one another?...
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