Exam 2 Flashcards
What phylum includes flat worms without body cavity.
Phylum Platyhelminthes
2 Definitive Characteristics of the Phylum Platyhelminthes
1)The body is flattened dorsoventrally
2)The only coelomates without an anal opening
Name 4 classes of the Phylum Platyhelminthes
1)Class Turbellaria
2)Class Monogenea
3)Class Trematoda
4)Class Cestoidea
[stir,bustle +like or connected with]- includes Planarians
ex. Biplaium adventitium, Dugesia Tigrina
Class Turbellaria
Located in the epidermis cells of Turbellaria and some nematodes used to secrete mucous in ciliated movement.
Rhabdite
What Phylum and Class is the Bipalium adventitium belong and what’s its common name
Phylum: Platyhelminthes
Class: Turbellaria
Common Name: Giant Land Planarian
What Phylum and Class is the Dugesia Tigrina belong and what’s it’s common name
Phylum: Platyhelminthes
Class: Turbellaria
Common Name: Freshwater Planarian
[one + organ, birth] includes the monogenetic flukes with 1,100 species, which are ectoparasites of vertebrates, especially fishes
Class Monogenean
1) Body covered with a syncytial tegument without cilia
2) Leaflike or cylindrical in shape
3) Opisthaptor
4)Prophaptor
5)Direct development with oncomiracidium
6)Body not apelike or with proglottids
7)Digestive system is incomplete
Characteristics of Class Monogenean
[white holes + form]- includes the trematodes, which are obligatory endoparasites with typically two to four intermediate hosts and with more than 11k species
Class Trematoda
1)Body leaflike in shape
2)Body covering a syncytial tegument without cilia
3)Oral and ventral suckers usually present
4)Hooks absent
5)Rostellum absent
6)Body not divide into proglottids
7)Digestive system is incomplete
8) Development indirect with 2-4 intermediate hosts.
Characteristics of Class Trematoda
what is Clonorchis Sinensis and what class does it belong to?
Human Liver Fluke, Class Trematoda
Fasciola Hepatica
Sheep Liver Fluke
Schistosoma mansoni
Human Blood fluke that cause swimmer itch
Two intermediates and final host for Clonorchis sinensis [Human Liver Fluke]
1)Snail
2)Fish
3)Human
Name the intermediate and final host of Schistosoma mansion [Human Blood Fluke]
1)Snail
2)Human
Name intermediate and final host for Fasciola Hepatica [Sheep Liver Fluke]
1)Snail
2)Sheep
[gridle + gorm] includes the tapeworms, which are obligatory endoparasites, with 3,400 species
Class Cestoidea
1)Body covering a syncytial, non-ciliated tegument
2)Body is tapelike
3)Body is divided into proglottids
4)A well developed scolex with hooks and suckers is present
5)Indirect development with two intermediate hosts
6)Digestive system is absent
characteristics of the Class Cestoidea
Taeniarhychus saginatus
Beef Tapeworm
Diplylidium Caninum
Dog Tapeworm
Diphyllobothrium Latum
Broad Fish Tapeworm
Ptoteocephalus ambloplitis
Bass Tapeworm
[molluscus=soft]- includes the mollusks and many other groups with 90k living species and 70k fossil species. Second Highest numbers of species of all animal phyla.
Phylum Mollusca
1)Dorsal, folded mantle that secretes the shell
2)One-piece or two-piece shell is present
3)Muscular foot is present
4)A radula is usually present
5)Usually a trochophore larva and a veliger larva
5 Definitive Characteristics of the Phylum Mollusca
7 Economic Importance of Mollusks
1)Food for human
2)Important members of food chain
3)Predators on animals
4)Commercial products: shells, pearls, jewelry, arts and crafts
5)Sources of lime and calcium
6)Toxins that kill animals and humans
7)Bait for fishing
5 General Characteristic of the Phylum Mollusca
1)Bilateral symmetry or asymmetry
2)Protostomes
3)Open circulatory system with hemocyanin as the respiratory pigment
4)A metanephridium is present
5) Cephalization with a well-developed head in most groups.
Three Layers of the Shell of the Phylum Mollusca
Periostracum
Prismatic layer
Nacreous Layer
the outer horny later of protein [conchiolin]
Periostracum
the middle layer of calcium carbonate in protein matrix
Prismatic layer
the inner layer of calcium carbonate in protein matrix
Nacreous layer
5 Classes of the Phylum Mollusca
Class Polyplacophora
Class Scaphopoda
Class Gastropoda or Class Univalvia
Class Pelecypoda or Class Bivalvia
Class Cephalopoda
[many + plate + to bear]- includes the chitons that are common inhabitants along rocky coasts in the oceans.
Class Polyplacophora
3 Characteristics of the Class Polyplacophora
A row of 8 calcareous plates
A radula is present
A large, flat ventral foot is present
[boat + foot]- includes the tusk shells with 350 species that are sedentary mollusks with a conical, tubular shell and a conical-shaped foot.
Class Scaphopoda
4 Characteristics of the Class Scaphopoda
A conical foot is present
A one-piece tubular shell that is open at both ends is present
Tentacles are present
Radula is absent
means parasitic worm
Helminth
what words means without body cavity
acoelomate
What are the economic importances of the Phylum Platyhelminthes.
Loss of wild animals,, domestic animals, and man due to parasitic illness.
The Class Monogenea has how many intermediate hosts?
0
Excretion in planarians are done by?
Protonephridia
An opisthaptor would be found in what class of flatworms
Monogenea
What is the common name of ectoparasites on the gills of fishes.
Gill flukes
What is the name of the larvae of the monogenetic flukes
miracidium
Name 5 phylum that are common Pseudocoelomates
Phylum Rotifera
Phylum Nemotoda
Phylum Gastrotricha
Phylum Kinorhyncha
Phylum Nematomorpha (Gordiacea)
What is the common name of animal with a crown of cilia and a max tax with jaws?
Rotifer
What Phylum does Rotifer belong?
Phylum Rotifera
What is the phylum name for a gastrotrich
Phylum Gastrotricha
An animal parasite with a retractable spiny proboscis is a?
Acanthocephalans
