Final answer:
The blockade of Southern ports was a result of the Anaconda Plan.
Step-by-step explanation:
The Anaconda Plan was a strategy developed by the Union during the American Civil War to defeat the Confederacy. One of the main results of the Anaconda Plan was the blockade of Southern ports. By controlling and blockading Southern ports, the Union was able to cut off vital supplies and resources from reaching the Confederacy, weakening their economy and war effort.