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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
True
B
False
3) polychaetes are annelids that help aerate and mix layers of soil, improving the soil's quality.
A
True
B
False
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
closed
B
four chambered
C
open
D
two chambered
6) The larvae of many marine annelids are ecologically important because they
A
feed on earthworms
B
are eaten by fishes and other marine animals
C
none of the above
D
poison coral reefs
7) What water conditions could be expected in an area where large numbers of mud-dwelling, filter feeding marine annelids are found?
A
abundance of bacteria
B
abundance of algae
C
all of the above
D
disturbed sediment
8) Earthworms benefit gardeners because their tunnels provide passageways for
A
polychaetes
B
leeches
C
planarians
D
plant roots and water
9) In earthworms, food is ground into small pieces in the
A
esophagus
B
gizzard
C
crop
D
pharynx
10) The body of an annelid has
A
segments
B
an external shell
C
stinging tentacles
D
a backbone
11) The bristle like structures on some annelids' bodies are called
A
setae
B
suckers
C
nephridia
D
ganglia
12) A type of worm that is an external parasite is the
A
earthworm
B
leech
C
polychaete
D
tapeworm
13) Which of these animals has a true coelom?
A
tapeworm
B
leech
C
planarian
D
filarial worm
14) In annelids, nitrogen containing wastes are eliminated by
A
clitella
B
gills
C
nephridia
D
parapodia
15) In earthworms, inability to produce offspring might be associated with
A
the inability of a worm to fertilize its own eggs
B
a malfunction of the clitellum
C
a malfunction of nephridia
D
lack of a true coelom
16) Flatworms are in the phyla
A
platyhelminthes
B
none of these
C
annelida
D
nematoda
17) Roundworms are in the phyla
A
annelida
B
platyhelminthes
C
nematoda
D
none of these
18) Segmented worms are in the phyla
A
nematoda
B
annelida
C
platyhelminthes
D
none of these
*select an answer for all questions
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