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Animal Bio Ch10
| Question | Answer |
|---|---|
| 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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