The main purpose of seeds is to carry out reproduction so that the plants can perpetuate themselves. After pollination and Fertilization the seed formed has the capacity to germinate into an adult plant over time. It has all the necessary nutrients and food sources required for a plant to germinate and are also modified for different species to allow for further dispersal so the plant can spread more easily to better growth conditions.
<span>There are two structures that would be found at a passive continental margin. These structures are continental shelves and continental slopes.</span>
I think the answer is Endospore. I'm sorry if I'm wrong...