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How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey
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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 09:00
To determine if a particular plant is homozygous or heterozygous, you would have to test cross with a
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Can u tell me some fun facts about meiosis and mitosis ??...
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