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Animal Bio Ch10

QuestionAnswer
Which of the following is not an acoelomate? Rotifera
Three important characteristics first appeared in the acoelomates. Which of the following is not one of them? nervous tissues
Acoelomates lack a body cavity because the __________ cells completely fills the area between the outer epidermis and digestive tract. parenchymal
Which of the following classes is typically not parasitic? Turbellaria
Marine ribbon worms are found within the phylum: Nemertea
Which of the following would you find either living a free-living life style or living in the space between bottom sediments in freshwater? Gastrotricha
The lone animal is this phyla lives on the mouthparts of North Atlantic lobsters. Cycliophora
With 34,000 species and counting, there are more described animals in this phyla of acoelomates than in any other phyla of acoelomates. Platyhelminthes
Animals in the phyla Platyhelminthes, Nemertea, Gastrotricha, Acoelomorpha, and Cycliophora exhibit this type of symmetry. bilateral symmetry
Sexual maturity in a larval body form is called paedomorphosis.
Characteristics of the Platyhelminthes include all of the following except many organ systems present.
Most turbellarians, such as the common planarian, -are carnivores -will also feed as herbivores -have chemoreceptors that help them detect food (All above)
Which is not part of the protonephridial system in a turbellarian? excretory tube
A few turbellarians have a free swimming larva termed a Muller's larva
Monogenetic flukes are so named because they have only one generation in their life cycle
A small group of flukes that are primarily internal parasites of molluscs are the subclass Aspidogastrea
The scientific name of the Chinese liver fluke is: Clonorchis sinensis
The scientific name of the sheep liver fluke is: Fasciola hepatica
Almost all cestodes belong to the subclass Eucestoda.
In the beef tapeworm life cycle, as an egg develops it forms a six-hooked (hexacanth) larva called an oncosphere. True
A fluid-filled bladder worm larva of a pork tapeworm is called a cysticercus, and it may form bladders in the brain of the mammalian host. True
The most distinctive feature of nemerteans is a long proboscis held in a sheath called a rhynchocoel. True
Nemerteans are microscopic, aquatic animals with a complete digestive tract and an unusual proboscis. False
Animals in the phyla Acoelomorpha are small flat worms less than 5 mm in length. True
Animals in the phyla Platyhelminthes have diploblastic tissue organization. False
The monogenetic flukes (class Monogenea) are mostly external parasites of fishes. True
Turbellarians are monoecious with reproductive systems adapted for internal fertilization. True
Most turbellarians move entirely by cilia and are predators and scavengers. True
Created by: skmmonks
 

 



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