5
which sequence represents the correct order of levels of
organization found in a complex organism?
1 cells organelles - organs - organ systems
tissues
2 tissues organs → organ systems
organelles-cells
3 organelles cells - tissues - organs -
organ systems
4 organs - organ systems -- cells - tissues --
organelles

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

The negative impacts of nonnative species generally outweigh the positive impacts

What form of anesthetic was used for field surgery