 
 <prompt> Which phyla get smaller than normal protective cavity between their body wall and internal organs? Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: The Ecdysozoa dem be protostomes, wey dem name from di common trait of growth by moulting or ecdysis. Di biggest animal phylum dey here, na di Arthropoda, wey include insects, spiders, crabs, and their kin. All dis organisms get body wey dey divided into repeating segments, typically with paired appendages. Two smaller phyla, di Onychophora and Tardigrada, dey close relatives of di arthropods and dem share dis traits. Di ecdysozoans still include di Nematoda or roundworms, wey fit be di second biggest animal phylum. Roundworms dey typically microscopic, and dem dey occur for nearly every environment where water dey. Some dey important as parasites. Smaller phyla wey relate to dem na di Nematomorpha or horsehair worms, and di Kinorhyncha, Priapulida, and Loricifera. Dis groups get reduced coelom, wey dem call pseudocoelom. 