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 |