Pzsol Worms

 

Worms Answer Key:

1)platyhelminthes phylum of flatworms 2)three number of body layers in worms 3)bilateral symmetry f flatworms 4)dorsal upper body surface of worms 5)ventral lower body surface of worms 6)ectoderm outermost cell layer of worms 7)mesoderm middle cell layer of worms 8)endoderm innermost cell layer of worms 9)acoelomate solid body in flatworms 10)coelom body cavity 11)gastrovascular gut with a single opening in flatworms 12)absorption how flatworms exchanges gases with their environment 13)anterior head or front end of a flatworm 14)cephalization anterior end with sensory structures concentrated there 15)parasite worms that live on or inside the body of their host 16)turbellaria class of flatworms containing the freshwater planarian 17)pharynx extendable feeding tube on the underside of planarians 18)mucus secreted by planarians to glide across 19)flame excretory cells in worms that filter wastes 20)ganglia clusters of nerve cells in worms 21)hermaphrodites worms that make both eggs & sperm 22)trematoda class of flatworms containing flukes 23)suckers found on the ends of flukes to attach to hosts 24)tegument tough outer covering on flukes 25)cestoda class containing tapeworms 26)scolex anterior end of a tapeworm with hooks & suckers 27)proglottids reproductive sections of a tapeworm’s body 28)nematoda phylum for roundworms 29)taper shape of both ends of a roundworms body 30)cuticle protective noncellular layer of roundworms 31)ascaris roundworm found in pig & horse intestines 32)hookworms intestinal parasitic roundworm with cutting plates in it’s mouth 33)trichinosis disease that result from eating infected undercooked pork 34)pinworms most common parasitic roundworm of children in the U.S. 35)rotifera phylum of worms with a crown of cilia surrounding the mouth 36)mastax muscular organ of rotifers to break down food 37)pseudocoelomates rotifers & nematodes are examples