They are called paleontologists.
They add nitrogen to the soul through their nodules !
The pollen grain is actually the male gametophyte generation of seed plants. Inside the anther, pollen mother cells divide by meiosis to form pollen grains whose nuclei contain half the number of chromosomes characteristic of the parent plant.
(hope that helped answer the question)
False, the aorta is the major artery that takes oxygenated blood from the heart to the rest of the body.
