"striking the "funny bone" is actually stimulation of (or injury to) the" radial nerve sciatic nerve ulnar nerve median nerve

when it is at an intermediate population density

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.