Multiple choice Which of the following is not a criterion for classification of plants? Presence and absence of vascular tissue Presence and absence of seeds Presence and absence of seed covering Presence and absence of cell wall Reveal answer Fill a bubble to check yourself D Correct answer Explanation All plant cells have cell walls made of cellulose, so this cannot be a classification criterion. The other options (vascular tissue, seeds, seed coverings) are valid criteria that vary across plant groups and form the basis of plant classification.