Examine seed dispersal mechanisms by completing the following paragraph. In flowering plants, the seeds develop from ovules, which are enclosed in ovary tissue to form a ( n ) to aid in dispersal. Fruits that are , such as peaches, are derived from a single ovary, while those that are , such as raspberries and blackberries, are derived from multiple groups of ovaries. More specifically, peaches are simple because they contain a pit with a single seed and are surrounded by fleshy tissue. Tomatoes are because they are fleshy with many chambers containing seeds and pulp. Dry indehiscent structures produced from simple ovaries are called while dry dehiscent structures produced from simple ovaries are called Fruits that are , such as blackberries, are derived from multiple groups of ovaries within a single flower. Fruits that are , such as pineapples, are derived from individual ovaries of multiple flowers that fused to form one structure. A ( n ) can have up to three layers: the forms the skin, the forms the fleshy tissue, and the forms the boundary between the former and the seed..