Propose an explanation for the apparent cause and effect relationship between the population of lynx & hares

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

Why should organisms reproduce more offspring than will survive? select all that apply.

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.