In morphology: Embryology. The development of the seed plant is basically different from that of an animal. The egg cell of a seed plant is retained within the enlarged lower part, or ovary, of the seed-bearing organ (pistil) of a flower; two sperm nuclei pass through a structure called a pollen tubeâ¦ Read More; wheat grains
Spleen Pain Causes 1  : Swelling of spleen is called splenomegaly. It can be caused by liver diseases, infections and blood related problems and also irregularity in the lymph system.  Certain infections like mononucleosis (caused by virus), toxoplasmosis (caused by parasite) and endocarditis (caused by bacteria) may cause pain in the spleen.
If your Spleen becomes infected, it could become enlarged, discolored, and damaged. Dr Oz said that the Spleen is often damaged in a car accident. When your Spleen is enlarged, that means you have some type of infection. Bacteria and viruses that go through the body can cause problems for the body if the Spleen cannot fend them off.