A researcher is training laboratory rats to run a complex maze. Each time the rats learn a new part of the maze, they are rewarded with a pellet of food. Within a few hours, the rats have learned the entire maze. Which of the following did the researcher use to teach the rats the maze?

the magna carta is a peace treaty between the king and the rebels. it was made because the the barons captured london in may 1215, so the king was forced to make a treaty with them.the document is written in latin.

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according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.

answer; when one group has an extremely high score at pretest;

i truly dont know the answer wait i do its 1,3,4