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.
If your dog or cat meets the requirements listed in Spirit Airlines Airlines pet policy to travel in-cabin, you will need an approved airline pet carrier. Spirit Airlines does not require a health certificate for accompanied pets traveling in the cabin.You must notify Spirit Airlines that you are traveling with a pet. Be sure to tell Spirit Airlines you will be flying with a pet when you make your reservation as they impose restrictions on the number of pets on a specific flight. 2  You must make your reservations on the telephone. 3  You cannot make reservations for your pet online.