Nutrients in coral reefs are extremely limited, which is why productivity lower than the deep ocean so plentiful that there is no limit to phytoplankton growth largely trapped below the pycnocline recycled efficiently because the water is shallow

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

Number and variety of living organisms includes genetic, species, and ecological types

What are some possible consequences of preventing prescribed burns and natural wildfires