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.
Definition of skepticism. 1 : an attitude of doubt or a disposition to incredulity either in general or toward a particular object.