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.
What is a 'Vertical Merger'. A vertical merger is a merger between two companies that operate at separate stages of the production process for a specific finished product. A vertical merger occurs when two or more firms, operating at different levels within an industry's supply chain, merge operations. Most often, the logic behind the merger is to increase synergies created by merging firms that would be more efficient operating as one.