Pzsol 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