What gene was spliced into frogs DNA? Which organism did the gene come from?

If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

According to the passage weisers mother could be blamed for

In 1919, the temperance movement finally succeeded. they secured ratification of a constitutional amendment (the that banned alcoholic beverages. prohibition began with the 1920 passage of the which enforced the amendment.