Setae are bristles found on the segments of Annelids that assist in movement, burrowing, or defense.
Setae are bristles found on the segments of Annelids. In polychaetes, the setae are anchored in the epidermis and are borne on paired appendages called parapodia. These chitinous bristles, when protruded, aid in movement, burrowing, or defense for the Annelids.
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