If a climate changed a ecosystem, there would be a change in the kinds of and. that could live in that ecosystem

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

How can an organ, such as the lungs, work for multiple body systems?

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