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MMS worms

3 worm phyla characteristics, examples, importance

QuestionAnswer
Organism that lives off of another organism for shelter, food, transport, etc. parasite
organism that lives on its own and does not rely on a host free-living
Phylum name of the roundworms Phylum nematoda
Examples of Nematodes dog heartworm, trichina worm, soil nematodes
Examples of Annelids leeches, earthworms, ocean tube worms (marine worms)
Examples of Platyhelminthes planaria, flukes, tapeworm
Phylum name of the flat worms Phylum Platyhelminthes
Phylum name of the round worms Phylum Nematoda
Phylum name of the segmented worms Phylum Annelida
What is the difference between the three worm phyla? Platyhelminthes have only one body opening and are flat; Nematoda have two body openings and are round; Annelids have 2 body openings and are segmented
What do the three worm phyla have in common? They all have 3 tissue layers, organs and organ systems, tube shaped soft body, invertebrates, bilateral symmetry
Bristle like structures used by annelids for movement setae
muscular sack in the annelid digestive tube that grinds food gizzard
chemical released by leeches that numbs the host's skin anesthetic
How are worms helpful? all three phyla of worms have members that are free-living and eat decaying plant matter, recycling nutrients for the soil
How are leeches helpful? Leeches are used in medicine to keep blood flowing to areas healing from surgery
How are worms harmful? All three phyla have worms that are parasitic and cause disease.
Created by: neumeist
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