Because arthropods are characterized by bilaterally symmetric  segmented bodies, an exoskeleton made from chitin, and joint  appendages, pretty much any characteristic otherâ¦ than these might  disqualify the organism. Mammals for example, with their internal  skeleton would be disqualified.
Medical Expense Deduction. You can deduct medical mileage as part of your overall medical expense deduction. The IRS limits the medical deduction to the amount of medical expenses in excess of 7.5 percent of your Adjusted Gross Income.
The IRS sets the standard mileage rate each year. The 2015 Mileage Rate is 57.5 cents per mile. To figure out your mileage deduction, simply multiply your business miles by the standard mileage rate for the specific year. Example: Ed, a salesperson, drove his car 20,000 miles for business during 2014.