1 Hourglass: Torso and hips are approximately the same width - with waist definition.  Apple: Torso and upper body wider than your hips - with little or no waist definition. You might have weight surrounding your waist.
From a legal point of view, a merger is a legal consolidation of two entities into one entity, whereas an acquisition occurs when one entity takes ownership of another entity's stock, equity interests or assets.
Memorandum of Understanding (MOU) A memorandum of understanding (MOU) is a document that describes a formal agreement between two parties. It is not a legal agreement, but it does indicate the establishment of a business relationship that will continue and likely result in a legal agreement such as a contract. This term is also known as a letter of intent (LOI) in the United States.