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the cavity used for transport purposes. It has one opening to the environment through which ingestion and digestion both take place.
a rubbery, protein-carbohydrate complex that forms the matrix of cartilage.
mostly columnar epithelium with cilia that line the nasal cavity, trachea, bronchi, fallopian...
pigments that occur in the brightly coloured, yellow, orange or red parts of the plant, such as...