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Final answer:Cellular junctions play crucial roles in various tissues and organs, such as preventing leakage and maintaining tissue integrity.Explanation:A. Epithelial cells of thesmall intestineare held together bytightjunctions, which prevent lumenal contents from leaking between cells.B. Cells of themyocardiumcan contract without chemical synapses because ofgapjunctions.C. Because ofdesmosomes, adjacent cells can resist being pulled apart.D. Epithelial cells can resist being pulled away from theirbasement membranebecause ofhemidesmosomes.Learn more about Cellular junctions here:brainly.com/question/32824428#SPJ4...