Why are gymnosperms and angiosperms classified as higher seed plants?

First, you need to remember some terms. Seed plants are those that multiply with seeds. These seeds can be covered with fruit. Such plants are respectively referred to as angiosperms. These are raspberries, currants, pears, plums, bananas and many other plants. Gymnosperms include conifers and some other plants. They appeared much earlier than angiosperms. Let us now recall the definition of higher plants. These are plants that have different tissues and organs in their structure.