B. the sinking of the Luisitania because it is what drove the United States into World War I.
The American civil war. The south is the blue, the north is red. The south didn’t need to capture any Northern Territory, whereas the north wanted to take over the south so that they could keep the states united, hence the Union.
Answer:
a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
Explanation:
Enzymes are both proteins and biological catalysts.
