I believe we obtain the cells of our test subject from DNA testing
hope it works!!
Answer:
Please see below
Explanation:
With the study on coat color, mice who could blend in better in the environment would be less likely to be detected bu the predator. Another hypothesis could be made in relevance to their legs. Longer legs would help the mice run quicker and increase the chances of escaping from the grasp of the predator, and hence, make survival more likely so it will be selected for. While shorter legged mice will be selected against since they are at a disadvantage.
Answer : Aluminum
Explanation : Symbols are the short forms which are used to define an element. The given element has the symbol as 
is Aluminum in +3 oxidation state and is a cation which can donate its 3 electrons to other species.
Therefore, the answer is Aluminum.
