Examlex
Which of the following is a zymogen that can be converted to an endopeptidase that hydrolyzes peptide bonds adjacent to Lys and Arg residues?
Parapodia
Paired, lateral appendages found on each segment of polychaetes and some other annelids, used for locomotion and sometimes respiratory functions.
Radula
A rasping, tongue-like organ found in many molluscs, used for feeding by scraping or cutting food before ingestion.
Earthworms
Terrestrial invertebrate worms belonging to the phylum Annelida, known for their role in aerating soil and breaking down organic matter.
Polychaetes
A class of annelid worms characterized by segmented bodies and paired, bristle-like appendages, commonly found in marine environments.
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