D. i think if i get you wrong then I'm sorry
D.
B. Is characterized by four different zones.
Answer:
A :The population of the country is increasing at a rapid rate.
Explanation:
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<span>Narrow junctions and desmosomes have different structures. Narrow junctions are made of a protein arranged inside the membrane. There are many intersecting lines that cause the cells to be sealed and together. Desmosomes contain the protein cadherin. There are cadherins in each cell and they join at this point sealing the cells together, the tight junctions have the function of preventing the materials that circulate between the cells. The desmosomes provide binding sites for the cells to be attached.</span>