Cnidarians have two basic body forms, medusa and polyp. Medusae, such as adult jellyfish, are free-swimming or floating. They usually have umbrella-shaped bodies and tetramerous (four-part) symmetry.
The election of Abraham Lincoln in 1860 triggered the war between the union and the confederacy.Lincoln wanted to end slavery and keep the Union together. report this answer. Updated on Thursday, February 02 2012 at 04:17AM EST. Source: www.radford.edu/...he election of Abraham Lincoln in 1860 triggered the war between the union and the confederacy. Lincoln wanted to end slavery and keep the Union together. report this answer.
The 1863 Union siege of Vicksburg split the Confederacy in two at the Mississippi River. In 1863, Robert E. Lee 's Confederate incursion north ended at the Battle of Gettysburg. Western successes led to Ulysses S. Grant 's command of all Union armies in 1864.