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16 Cards in this Set
- Front
- Back
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Roundworms are slender, ______ worms with tapering ends.
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unsegmented
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environment of free-living roundworms?
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soil, salt flats, aquatic sediments, water
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type of coelem?
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pseudocoelem - false coelem
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are roundworms hermaphrodites?
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no
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do roundworms produce sexually or asexually?
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sexually
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parasitic roundworms include:
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1. trichinosis- causing worms
2. filarial worms 3. ascarid worms 4. hookworms |
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The roundworm Trichinella infects some mammals such as humans and ____. In humans, it causes a dead called ______.
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pigs;
trichinosis |
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filarial worms: found where?
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tropical regions in asia
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filarial worms: lives where in body?
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blood and lymph vessels
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filarial worms: found in what type of organisms?
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birds and humans
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filarial worms: transmitted by?
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biting insects
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filarial worms: causes which disease?
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elephantiasis
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ascarid worms: how is ascaris lumbricoides common spread?
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eating vegetables that are not washed properly
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ascarid worms: describe what happens to the eggs once they are injected by the host.
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they hatch in the small intestine, burrow into walls of intestines, enter blood vessels, travel to lungs, into through, swallowed
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hookworms: how do these worms enter and infect humans?
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enter an unprotected foot and enter the bloodstream
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hookworms: what health problems do these worms cause?
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weakness and poor growth
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