| 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 |