Suppose you wanted to estimate the number of dandelions in a field. It could take hours to count every single one, so ecologists use a SAMPLING technique. A single sample is used to estimate the size of the overall population. 1. What might cause the estimate to be wrong with this method? 2. Why would it be difficult to use this method to estimate the population of fish?
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Biology, 21.06.2019 20:00
Which type of bacterial reproduction is depicted in the diagram?
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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, 22.06.2019 03:00
What causes darkening of the skin as melanin production increases
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Biology, 22.06.2019 10:50
What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis
Answers: 2
Suppose you wanted to estimate the number of dandelions in a field. It could take hours to count eve...
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