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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
Answers: 1
Biology, 21.06.2019 23:00
Classify the structures as homologous or analogous, depending on their structure and function.
Answers: 1
Biology, 22.06.2019 05:20
The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis
Answers: 3
Biology, 22.06.2019 05:30
2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.
Answers: 2
In a stage of the cell cycle, the cytoplasm of the cell divides to form two separate cells. which st...
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