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Questions and Answers
Which phylum contains classes Turbellaria, Trematoda, and Cestoda?
Which phylum contains classes Turbellaria, Trematoda, and Cestoda?
In which phylum is the body covered by cuticle and syncytial epidermis?
In which phylum is the body covered by cuticle and syncytial epidermis?
Which phylum has a true coelom lined by epithelium in the body cavity?
Which phylum has a true coelom lined by epithelium in the body cavity?
Which phylum has classes with both free-living and endoparasitic species?
Which phylum has classes with both free-living and endoparasitic species?
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In which phylum are the sexes separate, with males being smaller than females?
In which phylum are the sexes separate, with males being smaller than females?
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Which phylum has excretion with the help of characteristic nephridia?
Which phylum has excretion with the help of characteristic nephridia?
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Which phylum has a circulatory system of open type?
Which phylum has a circulatory system of open type?
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Which phylum has hemoglobin dissolved directly in the plasma?
Which phylum has hemoglobin dissolved directly in the plasma?
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Which phylum has a nervous system consisting of a nerve ring and a double ventral nerve cord with segmental ganglia?
Which phylum has a nervous system consisting of a nerve ring and a double ventral nerve cord with segmental ganglia?
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Which phylum has locomotion with the help of setae or parapodia?
Which phylum has locomotion with the help of setae or parapodia?
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Which phylum has a complete digestive system?
Which phylum has a complete digestive system?
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Which phylum has respiration through gills, trachea, or book lungs?
Which phylum has respiration through gills, trachea, or book lungs?
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Which phylum has excretion through coxal glands or malpighian tubules?
Which phylum has excretion through coxal glands or malpighian tubules?
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Which phylum has cilia totally absent in any part of the body?
Which phylum has cilia totally absent in any part of the body?
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Which phylum has a free living form found most in soil?
Which phylum has a free living form found most in soil?
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Which phylum has a free living marine forms?
Which phylum has a free living marine forms?
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Platyhelminthes is divided into three classes: Turbellaria, Trematoda, and Cestoda.
Platyhelminthes is divided into three classes: Turbellaria, Trematoda, and Cestoda.
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Nematoda has a complete digestive system with both mouth and anus.
Nematoda has a complete digestive system with both mouth and anus.
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Annelida's body wall consists of cuticle, epidermis, and musculature.
Annelida's body wall consists of cuticle, epidermis, and musculature.
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Platyhelminthes includes both free-living and endoparasitic species.
Platyhelminthes includes both free-living and endoparasitic species.
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Nematoda has a respiratory and circulatory system.
Nematoda has a respiratory and circulatory system.
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Annelida's body cavity is a pseudocoelom.
Annelida's body cavity is a pseudocoelom.
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Annelids have a closed circulatory system and hemoglobin dissolved directly in the plasma.
Annelids have a closed circulatory system and hemoglobin dissolved directly in the plasma.
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Annelids have a nervous system consisting of a nerve ring and a double ventral nerve cord with segmental ganglia.
Annelids have a nervous system consisting of a nerve ring and a double ventral nerve cord with segmental ganglia.
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Annelids use setae or parapodia for locomotion.
Annelids use setae or parapodia for locomotion.
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Annelids reproduce only by sexual methods.
Annelids reproduce only by sexual methods.
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All annelids have a free-living habitat.
All annelids have a free-living habitat.
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Arthropods have a body made up of a hard, impermeable substance called chitin.
Arthropods have a body made up of a hard, impermeable substance called chitin.
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Arthropods have a complete digestive system.
Arthropods have a complete digestive system.
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Arthropods have an open circulatory system.
Arthropods have an open circulatory system.
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Arthropods have exoskeleton made up of a hard, impermeable substance called chitin.
Arthropods have exoskeleton made up of a hard, impermeable substance called chitin.
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Arthropods have a nervous system consisting of a nerve ring and a double ventral nerve cord.
Arthropods have a nervous system consisting of a nerve ring and a double ventral nerve cord.
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Study Notes
Phylum Platyhelminthes
- Consists of three classes: Turbellaria, Trematoda, and Cestoda
- Includes both free-living and endoparasitic species
- Excretion occurs with the help of characteristic nephridia
- Sexes are separate, with males being smaller than females
- Cilia are totally absent in any part of the body
Phylum Nematoda
- Has a complete digestive system with both mouth and anus
- Has a respiratory and circulatory system
- Has no excretory system with coxal glands or malpighian tubules
- Body is not covered by cuticle and syncytial epidermis
Phylum Annelida
- Body wall consists of cuticle, epidermis, and musculature
- Body cavity is a true coelom lined by epithelium
- Has a closed circulatory system and hemoglobin dissolved directly in the plasma
- Has a nervous system consisting of a nerve ring and a double ventral nerve cord with segmental ganglia
- Uses setae or parapodia for locomotion
- Reproduces only by sexual methods
- Has a free-living habitat, often found in soil
- Has a complete digestive system
- Respiration occurs through gills, trachea, or book lungs
Phylum Arthropoda
- Body is made up of a hard, impermeable substance called chitin
- Has a complete digestive system
- Has an open circulatory system
- Has an exoskeleton made up of a hard, impermeable substance called chitin
- Has a nervous system consisting of a nerve ring and a double ventral nerve cord
- Has a free-living marine form
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Description
Test your knowledge of the characteristics, classes, and examples of the phylum Platyhelminthes and Nematoda. Learn about their habitats, digestive systems, and general features.
