Answer:
Xylem cells have no cytoplasm or end walls, meaning they form a tube through which water can pass freely to allow water transport. Lignin strengthens the cell walls, helping to support the plant.
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Answer:si
Explanation:hope I helped
Is made up of which of the following is both dna and rna
Any process that exerts a stress on a rock that eventually causes it to break into smaller fragments is a type of mechanical weathering.