Answer:
D.
Explanation:
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The cell wall contains not only cellulose and protein, but other polysaccharides as well. The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.
Answer:
process of fossilization , which mineral deposits form internal casts of organisms.
Explanation:
H20 and 02 is the correct answer.