Examlex
A hole through a bone that usually allows passage for nerves and blood vessels is called a(n) _________.
Root Cell Wall
A protective layer that surrounds the cells of a plant's root, providing support and regulating the movement of water and nutrients.
Cuticle
Secreted covering at a body surface.
Lignin Wall
A complex organic polymer deposited in the cell walls of many plants, making them rigid and woody.
Soil Layer
A distinct layer within the soil profile, such as topsoil or subsoil, characterized by specific physical, chemical, and biological properties.
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