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:
a. the mice would all be the same size
b. the mice would all be the same color
c. the experiment could be repeated with the same mice
d. genetic differences would not affect the outcome of the test
e. the experiment wouldn't cost as much
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a. the mice would all be the same size
b. the mice would all be the same color
c. the experiment could be repeated with the same mice
d. genetic differences would not affect the outcome of the test
e. the experiment wouldn't cost as much
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Answered by Kgalvez1993 Friday Mar 30th 2012
d
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Answered by msjojo Friday Dec 16th 2011
Amniotes verterbrates are generally classified into three orders :retilian ,ayes(birds) and mammalian of the following, which group of three animals contains one member of each order?
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Answered by srini Saturday Aug 6th 2011
d
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Answered by Priscilla Tuesday Jan 6th 2009
the mice would all be the same size
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Answered by Shan Wednesday Dec 17th 2008
The answer is (d).
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