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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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Biology, 22.06.2019 02:30
Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers
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Biology, 22.06.2019 03:30
Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins
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Biology, 22.06.2019 05:40
Why do we perceive objects as retaining their brightness under different lighting levels?
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Mathematics, 06.01.2020 07:31
Mathematics, 06.01.2020 07:31
Mathematics, 06.01.2020 07:31
Mathematics, 06.01.2020 07:31
Mathematics, 06.01.2020 07:31
History, 06.01.2020 07:31
Mathematics, 06.01.2020 07:31