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