The three main parts of a seed are the seed coat, embryo and the endosperm. The seed coat is what protects the embryo and contains all the features to form a new plant. The endosperm nourishes the embryo until it can sustain itself and produce its own food.
The egg shell would be most representative of the Earth's Mantle or "Crust", the yolk and white would represent the molten metal inside the earths core I assume.
The largest reservoir of Nitrogen on earth is THE ATMOSPHERE. Nitrogen found in the atmosphere is known to be the Dinitrogen gas (N₂), and it makes up as much as 78% of all the gases in the dry air (atmosphere).
So, whichever arrow points to the atmosphere is your right answer.
I think you forgot to give the options along with the question. I am answering the question based on my knowledge and research. Tropical plant fossils found on islands in the Arctic ocean <span>helped prove the theory of Pangaea. I hope that this is the answer that has actually come to your desired help.</span>
The Female parts consists of one ovary. The ovary contains ovules which are the "small egg" part of the plant which contains the female reproductive cells. Then from the ovary, extends a tube like structure called the "style" and on the top of it is a surface receptive to pollen called the stigma which can take many forms. As for the males they have the filament which transfers the cells unto stamen and anthers to transfer into the female parts