What does this even mean? can you resay your question
<span>Osteoporosis. The prefix "osteo" means bone, "poro" means porous/with holes, and "osis" is a suffix that denotes an abnormal condition or state of being.</span>
Really, none of these answers are good. leukocytes are the body's general immune cell, and lymphocytes are a type of leukocyte. Antibodies are only used when fighting an infection that your body already has experience with, so I'm guessing it you have to pick from these answers, its "lymphocytes", but it's not really the best answer.
There’s not really a definite answer- but the most lethal drops occur from 20-50 feet, yet there have been cases of phonomena in which someone can survive a fall from a plane.