Which is the best procedure for the following preparation? 
Definitions:
Gills
The respiratory organ found in many aquatic organisms that extracts oxygen from water and expels carbon dioxide.
Chitin-Hardened Jaws
Structural feature referring to jaws strengthened by chitin, a fibrous substance forming the exoskeleton of arthropods and other organisms.
Marine Polychaetes
A diverse class of annelid worms, commonly known as bristle worms, that live in various marine environments.
Chitin-Reinforced Bristles
Stiff bristles made stronger with the natural polymer chitin, commonly found in the exoskeletons of arthropods.
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