Which of these cell junctions form a barrier to the passage of materials?

Tight junctions form a barrier that prevents fluids from moving between cells.

Explanation:

Tight junction proteins are molecules found at endothelial, close epithelial and myelinated cell junctions. This junctional complex of mutliproteins has a regulatory role in moving through the paracellular path of water, solutes and ions.

Tight junctions helps to bind the cells together which further prevents molecules from passing in between the cells and forms a barrier to the passage of material.

Hence, the correct answer is Tight junctions.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.