Frog RBCs contain a DNA-bearing nucleus that is visible in the center of the cell. Human RBCs do not possess nucleus along with other cell organelles such as mitochondria, Golgi apparatus and endoplasmic reticulum in order to accommodate greater amount of haemoglobin in the cells. Denucleation of rbcs is an adaptation, Which makes the mammalian red blood cell effective at transporting oxygen/eliminating CO2.
Well a cell is like a car because each cell has a distance to go to. one cell has to drive all the way from your finger to your brain to let u know whats wrong. if there's pain or num. it also do other things to like a blood cell has to drive every part of your body to give oxygen. it has so many places to go to.<span />
HI i was wondering 1 what engineer choice you are going for and two if this is what you mean. study hard to to bed early and make class . (im saying this becasue i have done it before :])
