Examlex
Lignite and bituminous coal are ____ rocks.
Lamina Propria
A layer of connective tissue found beneath the epithelium in mucous membranes, providing support and nourishment.
Digestive Tracts
The digestive tracts refer to the series of hollow organs joined in a long, twisting tube from the mouth to the anus, where digestion and absorption of food happen.
Plasma Cells
White blood cells that produce antibodies, deriving from B lymphocytes.
Ground Substance
The unstructured material that fills the space between cells in connective tissue, providing support and a medium for exchange.
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