Answer:
Fruits can be classified into two main groups based on their structures: fleshy fruits and dry fruits.
Fleshy fruits are further divided into two types: simple fruits and aggregate fruits. Simple fruits develop from a single ovary in a flower and can be either fleshy or dry. Some examples of fleshy simple fruits include berries (such as grapes and tomatoes), drupes (such as peaches and plums), and pomes (such as apples and pears). Dry simple fruits include nuts, legumes (such as beans and peas), and grains (such as corn and wheat).
Aggregate fruits, on the other hand, develop from a single flower with multiple ovaries. Each ovary develops into a small fruit that is attached to a central receptacle, forming a cluster of individual fruits. Some examples of aggregate fruits include strawberries and raspberries.
Dry fruits, as their name suggests, are fruits that are dry at maturity. They can be either dehiscent (splitting open at maturity) or indehiscent (not splitting open). Examples of dehiscent dry fruits include capsules (such as poppy and iris) and follicles (such as milkweed and peony), while examples of indehiscent dry fruits include achenes (such as sunflower and buttercup) and samaras (such as maple and ash).
In summary, the structures of fruits differ based on whether they are fleshy or dry, and if they are fleshy, whether they are simple or aggregate. Understanding the structures of fruits can help us identify different types of fruits and better understand their characteristics and uses