The plants that store their food in seeds are called angiosperms. These are flowering plants, which are the most diverse and abundant plant group on Earth.

Here's why:

* Seeds are the result of fertilization. When a flower is pollinated, the ovary of the flower develops into a fruit, which contains seeds.

* Seeds contain the embryo. This is the tiny plant that will grow into a new plant.

* Seeds also contain a food supply. This is called the endosperm, and it's a storehouse of nutrients like starch, proteins, and fats. The embryo uses this food to grow and develop until it can produce its own food through photosynthesis.

Here are some examples of angiosperms that store their food in seeds:

* Grains: Wheat, rice, corn, barley, oats

* Legumes: Beans, peas, lentils

* Nuts: Almonds, walnuts, peanuts

* Fruits: Apples, oranges, bananas, grapes

* Vegetables: Tomatoes, cucumbers, zucchini

Note: While gymnosperms (non-flowering seed plants like conifers) also produce seeds, they usually don't store as much food in their seeds as angiosperms.