â¢ Both fluids mainly composed of water, but there are more ions in the extracellular fluid than in intracellular fluid. â¢ Glucose is present in both fluids, but extracellular fluid does not have organelles to break those down to produce energy but intracellular fluid does.
Spirit Airlines allow all passengers to bring one personal item, like a briefcase, purse or small backpack, into the cabin with them, but youâll have to pay extra if you want to bring a larger piece of carry-on luggage or check a suitcase into the hold.
Dimensions. A traveler who brings carry-on luggage onto a United flight must bring a bag that is less than 22 inches tall. The luggage also needs to be less than than 14 inches wide and 9 inches deep.pace Issues. Any luggage that you bring on a United flight must be able to fit under your seat or in an overhead bin. In some instances -- particularly if you are among the last to board a plane -- there might not be a lot of room left to store a bag in an overhead bin.