What are the structural similarities and differences between a brick wall and an onion peel?

A. Both are composed of bricks.
B. Both have a similar texture.
C. Similarities: Both have layers. Differences: Brick wall is solid, while onion peel is thin and flexible.
D. There are no structural similarities or differences between them.

A brick wall and an onion peel both have layers, but they have several structural differences. A brick wall is solid and made up of individual bricks, while an onion peel is thin and flexible due to its peptidoglycan cell walls.

Explanation:

Both a brick wall and an onion peel have layers but they have several structural differences. A brick wall is solid and made up of individual bricks that are stacked together and mortared. On the other hand, an onion peel is thin and flexible due to the composition of its cell walls. The cell walls of an onion peel are made of a complex structure called peptidoglycan, which is composed of polysaccharide chains cross-linked to peptides.

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