Answers: 3
Biology, 21.06.2019 20:00, zaratayyibah
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
Answers: 1
Biology, 21.06.2019 23:30, brittanysanders
Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?
Answers: 2
Biology, 22.06.2019 02:30, kaliloabousjbf
In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring
Answers: 1
The nails are derived from which layer?...
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