Answer: Dr Ramen used Correlational research method;
Dr Ramen was studying the sensitivity of supertasters. 
Explanation: Correlational research methods can be simply defined as a non experimental way of obtaining information about the correlation (relationship) between two or more variables. 
Dr Ramen was looking for the relationship between two variables such as; the size of taste bud and number of food that could be tasted, this shows that she used the correlational research method in her study. 
After the studies, Dr Ramen found that there was a relationship between the size of a participant's taste bud and the number of foods that a participant could taste, the shows that she was most likely studying the sensitivity of supertasters. 
 
        
             
        
        
        
gamma radiation is both a type of nuclear radiation and electromagnetic radiation.
Radiation has both electric and magnetic fields and travels in waves. It comes from natural and man-made sources. The intensity of electromagnetic radiation varies from low energy to high energy. There are radio waves, microwaves, infrared rays, visible rays, ultraviolet rays, X-rays, and gamma rays.
Electromagnetic radiation consists of an electric field (E) of varying strength perpendicular to the direction of propagation of the radiation and a magnetic field (M) perpendicular to the electric field. Both fields move at the speed of light (c).
Electromagnetic radiation occurs when atoms absorb energy. The absorbed energy causes one or more electrons to change positions within the atom. Electromagnetic waves are generated when electrons return to their original positions.
 Learn more about Electromagnetic radiation here: brainly.com/question/18797544
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A. Gross Domestic Product per capita. 
        
                    
             
        
        
        
Hey,
Jamestown settlers experimented with GLASSBLOWING, VINEYARD cultivation, and even silkworm farming. Despite efforts to diversify 
the economy, by the end of the 1620s only one crop was drawing a fair market price in England: tobacco.
 
        
             
        
        
        
I don’t know if you mean why did so many Germanic tribes begin invading the Roman Empire? They were fleeing the Huns, who had moved into their lands and began destroying everything. When they were running away from the Huns, the Germanic people moved through the Roman provinces of Gaul, Spain and North Africa.