I believe the correct answer to the question is D. This answer choice makes the most sense given the context. Also, since RNA is less stable than DNA, it mutates more often.
The epithelial cells resist stretching and twisting in the
skin because if desmosomes that holds them together. The desmosomes are the one
responsible for the cell to cell adhesions, making them be tight or held
together as this is its structure.
Xylem transports and stores water and water-soluble nutrients.
Phloem transports sugars, proteins, and other organic molecules.
I guess its proteins?? because its needed for building protoplaam
