Xylem tracheids are pointed, elongated xylem cells, the simplest of which have continuous primary cell walls and lignified secondary wall thickenings in the form of rings, hoops, or reticulate networks.
honestly. adv. 1. in an honest manner. 2. (intensifier): I honestly don't believe it. interj.
Internal Revenue Service (IRS) Definition of an Expense. Posted on 04/03/2013 by Dave in Income Taxes. The Internal Revenue Service defines a business expense as âordinaryâ and ânecessaryâ. Ordinary expenses are those costs typically incurred in your industry. So a restaurant would not ordinarily purchase vaccines. And a medical practice would not purchase 50 heads of lettuce.