Phylum Nemotoda Flashcards

1
Q

Common name

A

Round worms
“Thread”

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2
Q

Symmetry

A

Bilateral
Triploblastic

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3
Q

Coelom

A

Pseudocoelom

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4
Q

Segmentation

A

Unsegmented

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5
Q

Organ systems

A

Complete digestive system
Excretory system
Nervous system (nerve ring)

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6
Q

Habitat

A

Marine
Freshwater
Soil (important for soil)

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7
Q

Reproduction

A

Monoecious and dioecious

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8
Q

Physical characteristics

A

Longitudinal muscles
Muscular pharynx

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9
Q

Examples

A

1) Ascaris: Infects many humans. Feces
2) Filal worms: block lymphatic system. Elephantiasis. Mosquitoes
3) Heartworm: canine heart damage. Mosquito
46 Crassus: eel swim bladder affect buoyancy. Catadromy and nfective

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