On what grounds are the fruits divided into simple and prefabricated, dry and juicy?

If there is only one pistil in a flower, then the fruit that has developed from it is called simple (wheat, peas, cherry). From a flower with several pistils, a composite, or complex, fruit (raspberry, blackberry) is formed. Depending on the amount of water in the pericarp, juicy and dry fruits are distinguished. Ripe juicy fruits have juicy pulp in the pericarp.

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