Liver problems. Failing liver. Something with the hippocampus getting smaller, which will cause your memory to leave you.
It is called a sister chromatid, not a polar body.
Image result for Is work done when you carry a book across the room at a constant velocity
Work is not done when you carry an object forward. You may have learnt that carrying an object and moving horizontally at a constant velocity has no work done. The truth is, there is a slight amount of work done due to overcoming air resistance in the horizontal direction.
to digest food in order to get nutrients.
