Biology 2 Quiz 27-3 Question Preview (ID: 33346)
Annelids.
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Unlike most parasitic worms, polychaetes typically attach to their host externally.
a) True
b) False
c)
d)
A worm found in a stream that is attached to a rock by a posterior sucker is a member of the class Oligochaeta.
a) True
b) False
c)
d)
polychaetes are annelids that help aerate and mix layers of soil, improving the soil's quality.
a) True
b) False
c)
d)
The type of embryonic tissue that lines a true coelom is called mesoderm.
a) True
b) False
c)
d)
Annelids have a(n) ________________ circulatory system, in which blood is contained in a network of blood vessels.
a) open
b) closed
c) four chambered
d) two chambered
The larvae of many marine annelids are ecologically important because they
a) poison coral reefs
b) are eaten by fishes and other marine animals
c) feed on earthworms
d) none of the above
What water conditions could be expected in an area where large numbers of mud-dwelling, filter feeding marine annelids are found?
a) disturbed sediment
b) abundance of bacteria
c) abundance of algae
d) all of the above
Earthworms benefit gardeners because their tunnels provide passageways for
a) leeches
b) polychaetes
c) plant roots and water
d) planarians
In earthworms, food is ground into small pieces in the
a) crop
b) gizzard
c) pharynx
d) esophagus
The body of an annelid has
a) a backbone
b) an external shell
c) segments
d) stinging tentacles
The bristle like structures on some annelids' bodies are called
a) setae
b) suckers
c) nephridia
d) ganglia
A type of worm that is an external parasite is the
a) tapeworm
b) polychaete
c) leech
d) earthworm
Which of these animals has a true coelom?
a) filarial worm
b) tapeworm
c) planarian
d) leech
In annelids, nitrogen containing wastes are eliminated by
a) clitella
b) parapodia
c) nephridia
d) gills
In earthworms, inability to produce offspring might be associated with
a) a malfunction of nephridia
b) a malfunction of the clitellum
c) lack of a true coelom
d) the inability of a worm to fertilize its own eggs
Flatworms are in the phyla
a) nematoda
b) platyhelminthes
c) annelida
d) none of these
Roundworms are in the phyla
a) platyhelminthes
b) annelida
c) nematoda
d) none of these
Segmented worms are in the phyla
a) platyhelminthes
b) nematoda
c) annelida
d) none of these
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