How is the buildup of insect resistance to insecticides similar to the
increase in bacterial resistance to antibiotics?

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

In what for do plants utilize nitrogen? why do they need nitrogen?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain