Scientists performed an experiment to determine whether there is a connection between learning ability and foo

Question

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in running through a maze. They were trained by giving them a mild electric shock whenever they took a wrong turn. Immediately after each learning session, one group of mice was fed, but the other was not, A week later, all of the mice were tested to see whether they could still run the maze correctly. The group that had been fed had retained this ability, but the other group had not. The probable reason that the scientists used only mice from the same pure-bred strain is so that?

Answer 1

In a pure-bred strain of mice, all of the mice are genetically identical. So, using a pure-bred strain eliminates any genetic variability from the experiments.

Answer 2

The mice would all have the same genetic ability when it comes to learning or memory. For instance if I took the kid of two unco-ordinated parents and the kid of a baseball and softball star and was to see which one could throw better after 1 day of instruction the base/sft ball players kid would most likely do better because it would have (possibly) a gentic inclination to throw. so if the scienctist used mice of differing genetics some might be better adapted to learning than others and how would they know which ones. This makes the experiments outcomes more likely to be based on the actual test than upon some other factor

Answer 3

Amniotes vertebrates are generally classified into three orders: Reptilian, Ayes (birds), and Mammalian. Of the following, which group of three animals contains one member of each order?

Answer 4

the differences in the mice was as limited as possible. both were
of the same breed so both have as many physical and mental and behavioral characteristics in common as possible