Lecture 7
Biology 101 with Mc Clenaghan at San Diego State University
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By: Immanuel Marinas
Created: 2011-10-09
Size: 29 flashcards
Views: 10
Created: 2011-10-09
Size: 29 flashcards
Views: 10
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bilateral symmetry
the property of being symmetrical on a vertical plane
cephalization
formation of head; associated with mobility
triploblasty
three tissue layers
protostome
1st opening mouth, 2nd anus; nervous system ventrally located
deuterostome
1st opening anus; 2nd mouth; nervous system dorsally located
blastopore
The opening of the archenteron in the gastrula that develops into the mouth in protostomes and the anus in deuterostomes.
ventral
bottom
dorsal
top
symbiosis
interaction of different species; types: mutualism, commensalism, parasitism
mutualism
both species benefit
commensalism
one species benefits, other is unaffected
parasitism
one species benefits, other is harmed; (ectoparasitic and endoparasitic)
endoparasitic
feed on host from inside
ectoparasitic
feed on host from outside
ectoderm
outer layer of the triploblasty
mesoderm
middle layer of the triploblasty
endoderm
inner layer of the triploblasty; involves the digestive system
incomplete gut
only 1 opening; food goes in through mouth and either digested completely or re-execrated through mouth
hermaphrodism
ability to cross fertilize; both sexes can do whatever role in the mating process
intermediate host
host that harbors a parasite only for a short transition period
definitive host
host that harbors a parasite typically providing food and shelter permanently
cercaria
the final, free-swimming larval stage of a trematode parasite
schistosomiasis
parasitic disease caused by trematodes; often chronic illness that can damage internal organs
life cycle of clonorchis
also known as Chinese Liver Fluke
syncytial tegument
skill cells on dorsal surface of Platyhelminthes
Opisthaptor
A posterior adhesive organ in monogenetic; used to attach to fish and absorb
scolex
hooks and suckers that allow cestoda, tapeworms, to attach to intestine of host
tapeworm strobilia
the chain of proglottids constituting the bulk of the body of adult tapeworms
proglottid
composition of successive segments in tapeworms
About this deck
By: Immanuel Marinas
Created: 2011-10-09
Size: 29 flashcards
Views: 10
Created: 2011-10-09
Size: 29 flashcards
Views: 10
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
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Naj
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