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Which of the following is not matched properly?

Last question using information from question 19. If the researchers had used the same set up except using dried herb in the treatment group and tincture (same dose) in the control group, would the results be valid?                   

What kind of transport is demonstrated by glucose entering the cell down the concentration gradient through a transport protein?                   

Something occurs to change an enzyme’s shape. What is the consequence?                 

Between animal cells, ______ make sure fluids don’t leak out of organs such as the stomach.   

An example of phosphorylation is adding a phosphate molecule to an adenosine diphosphate. 

What is true about living organisms/systems?                   

The first Law of Thermodynamics says

What is true about living organisms/systems?                   

For questions 19-22. Answer the 4 following questions about this scenario. A limited research project attempted to determine whether or not echinacea could cure the common cold. There were 40 people included, 20 infected with rhinovirus and treated with 100mg of echinacea am and pm, and the other 20 infected with rhinovirus and receiving a placebo which resembled the echinacea given to the treatment group.  What is the dependent variable?