Chapter 27 – Worms and Mollusks
A
Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
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FINAL ROUND
Topic 1:
$100 Question
The simplest animals to have three
embryonic germ layers. Bilateral
symmetry, and cephalization are the
___________.
a. nematodes
b. roundworms
c. flatworms
d. leeches
ANSWER
BACK TO GAME
Topic 1:
$100 Answer
The simplest animals to have three
embryonic germ layers. Bilateral
symmetry, and cephalization are the
___________.
a. nematodes
b. roundworms
c. flatworms
d. leeches
BACK TO GAME
Topic 1:
$200 Question
Some snails and other mollusks never seem to develop any
form of ___________.
a. mucus
b. polychaetes
c. trochophores
d. cancer
ANSWER
BACK TO GAME
Topic 1:
$200 Answer
Some snails and other mollusks never seem to develop any
form of ___________.
a. mucus
b. polychaetes
c. trochophores
d. cancer
BACK TO GAME
Topic 1:
$300 Question
The type of embryonic tissue that lines a
true coelom is called _________.
a. mesoderm
b. gastroderm
c. endoderm
d. ectoderm
ANSWER
BACK TO GAME
Topic 1:
$300 Answer
The type of embryonic tissue that lines a
true coelom is called _________.
a. mesoderm
b. gastroderm
c. endoderm
d. ectoderm
BACK TO GAME
Topic 1:
$400 Question
Many free-living roundworms are
__________, which are animals that eat
other animals.
a. herbivores
b. carnivores
c. detritivores
d. bacteria
ANSWER
BACK TO GAME
Topic 1:
$400 Answer
Many free-living roundworms are
__________, which are animals that eat
other animals.
a. herbivores
b. carnivores
c. detritivores
d. bacteria
BACK TO GAME
Topic 1:
$500 Question
Roundworms have a tube-within-a-tube
digestive tract with two openings—a
mouth and a(an) ___________.
a. gut
b. anus
c. belly
d. foot
ANSWER
BACK TO GAME
Topic 1:
$500 Answer
Roundworms have a tube-within-a-tube
digestive tract with two openings—a
mouth and a(an) ___________.
a. gut
b. anus
c. belly
d. foot
BACK TO GAME
Topic 2:
$100 Question
The primary host of Schistosoma mansoni
is a(an)
a. flatworm
b. sheep
c. human
d. dog
ANSWER
BACK TO GAME
Topic 2:
$100 Answer
The primary host of Schistosoma mansoni
is a(an)
a. flatworm
b. sheep
c. human
d. dog
BACK TO GAME
Topic 2:
$200 Question
A filter-feeding annelid fans water through
tubelike burrows and catches food
particles in a ____________ bag.
a. shopping
b. filter
c. mucus
d. woven silk
ANSWER
BACK TO GAME
Topic 2:
$200 Answer
A filter-feeding annelid fans water through
tubelike burrows and catches food
particles in a ____________ bag.
a. shopping
b. filter
c. mucus
d. woven silk
BACK TO GAME
Topic 2:
$300 Question
The foot of most cephalopods is divided into eight or more
arms called ____________.
a. sporangia
b. tentacles
c. tail fibers
d. toes
ANSWER
BACK TO GAME
Topic 2:
$300 Answer
The foot of most cephalopods is divided into eight or more
arms called ____________.
a. sporangia
b. tentacles
c. tail fibers
d. toes
BACK TO GAME
Topic 2:
$400 Question
The shell of most mollusks is composed of ____________,
which is secreted by glands in the mantle.
a. chitin
b. proteins
c. calcium carbonate
d. sodium bicarbonate
ANSWER
BACK TO GAME
Topic 2:
$400 Answer
The shell of most mollusks is composed of ____________,
which is secreted by glands in the mantle.
a. chitin
b. proteins
c. calcium carbonate
d. sodium bicarbonate
BACK TO GAME
Topic 2:
$500 Question
A marine animal that has a(an)
_______________ larva and a true
coelom could be either an annelid or a
mollusk—it is impossible to classify it
without further information.
a. polychaete
b. trochophore
c. carnivorous
ANSWER
d. prokaryotic
BACK TO GAME
Topic 2:
$500 Answer
A marine animal that has a(an)
_______________ larva and a true
coelom could be either an annelid or a
mollusk—it is impossible to classify it
without further information.
a. polychaete
b. trochophore
c. carnivorous
d. prokaryotic
BACK TO GAME
Topic 3:
$100 Question
Many aquatic mollusks have a freeswimming larval stage, called a(an)
___________ larva.
a. trochophore
b. carnivorous
c. herbivorous
d. prokaryotic
ANSWER
BACK TO GAME
Topic 3:
$100 Answer
Many aquatic mollusks have a freeswimming larval stage, called a(an)
___________ larva.
a. trochophore
b. carnivorous
c. herbivorous
d. prokaryotic
BACK TO GAME
Topic 3:
$200 Question
Bottom-dwelling annelids from the class
__________ are important in marine
ecosystems and form part of the diets of
fishes and crustaceans.
a. Polychaeta
b. Oligochaeta
c. SandsofIwoJimaeta
d. Chondrichthaeta
ANSWER
BACK TO GAME
Topic 3:
$200 Answer
Bottom-dwelling annelids from the class
__________ are important in marine
ecosystems and form part of the diets of
fishes and crustaceans.
a. Polychaeta
b. Oligochaeta
c. SandsofIwoJimaeta
d. Chondrichthaeta
BACK TO GAME
Topic 3:
$300 Question
Annelids have a(an) ________ circulatory
system, in which blood is contained in a
network of blood vessels.
a. open
b. semi-tubular
c. nephridic
d. closed
ANSWER
BACK TO GAME
Topic 3:
$300 Answer
Annelids have a(an) ________ circulatory
system, in which blood is contained in a
network of blood vessels.
a. open
b. semi-tubular
c. nephridic
d. closed
BACK TO GAME
Topic 3:
$400 Question
Sandworms and bloodworms are
members of the class of marine annelids
called ____________.
a. oligochaetes
b. polychaetes
c. sandsofIwoJimaetes
d. chondrichthaetes
ANSWER
BACK TO GAME
Topic 3:
$400 Answer
Sandworms and bloodworms are
members of the class of marine annelids
called ____________.
a. oligochaetes
b. polychaetes
c. sandsofIwoJimaetes
d. chondrichthaetes
BACK TO GAME
Topic 3:
$500 Question
The larvae of the roundworm species
named __________ form cycts in the
host’s muscle tissue.
a. Trichinella
b. Schistomyosin
c. leech
d. night crawler
ANSWER
BACK TO GAME
Topic 3:
$500 Answer
The larvae of the roundworm species
named __________ form cycts in the
host’s muscle tissue.
a. Trichinella
b. Schistomyosin
c. leech
d. night crawler
BACK TO GAME
Topic 4:
$100 Question
How do the body systems of parasitic roundworms
generally compare to those of free-living
roundworms?
a. They are more complex.
b. They are simpler.
c. Parasitic roundworms lack a reproductive
system.
d. Free-living roundworms have an internal
ANSWER
transport system.
BACK TO GAME
Topic 4:
$100 Answer
How do the body systems of parasitic roundworms
generally compare to those of free-living
roundworms?
a. They are more complex.
b. They are simpler.
c. Parasitic roundworms lack a reproductive
system.
d. Free-living roundworms have an internal
transport system.
BACK TO GAME
Topic 4:
$200 Question
Which of the following is evidence that mollusks and annelids
may be closely related?
a. Both groups have setae.
b. Both groups have a trochophore larva.
c. Neither group has lungs.
d. Both groups include both marine and terrestrial
animals.
ANSWER
BACK TO GAME
Topic 4:
$200 Answer
Which of the following is evidence that mollusks and annelids
may be closely related?
a. Both groups have setae.
b. Both groups have a trochophore larva.
c. Neither group has lungs.
d. Both groups include both marine and terrestrial
animals.
BACK TO GAME
Topic 4:
$300 Question
A type of worm that is an external parasite
is the
a. tapeworm.
b. polychaete.
c. leech.
d. earthworm.
ANSWER
BACK TO GAME
Topic 4:
$300 Answer
A type of worm that is an external parasite
is the
a. tapeworm.
b. polychaete.
c. leech.
d. earthworm.
BACK TO GAME
Topic 4:
$400 Question
What causes the disease called
elephantiasis?
a. flukes
b. ascarid worms
c. hookworms
d. filarial worms
ANSWER
BACK TO GAME
Topic 4:
$400 Answer
What causes the disease called
elephantiasis?
a. flukes
b. ascarid worms
c. hookworms
d. filarial worms
BACK TO GAME
Topic 4:
$500 Question
Earthworms are oligochaetes because
they
a. have just a few setae on each
segment.
b. reproduce sexually.
c. have bodies made up of identical
segments.
d. are parasitic.
ANSWER
BACK TO GAME
Topic 4:
$500 Answer
Earthworms are oligochaetes because
they
a. have just a few setae on each
segment.
b. reproduce sexually.
c. have bodies made up of identical
segments.
d. are parasitic.
BACK TO GAME
Topic 5:
$100 Question
Earthworms benefit gardeners because their
tunnels provide passageways for
a. leeches.
b. polychaetes.
c. plant roots and water.
d. planarians.
ANSWER
BACK TO GAME
Topic 5:
$100 Answer
Earthworms benefit gardeners because their
tunnels provide passageways for
a. leeches.
b. polychaetes.
c. plant roots and water.
d. planarians.
BACK TO GAME
Topic 5:
$200 Question
Why is an open circulatory system adequate for a
bivalve, such as a clam, but not for a cephalopod, such
as a squid?
a. Bivalves are largely sedentary, while squids
move quickly.
b. Bivalves have relatively high oxygen demands.
c. Cephalopods have relatively low oxygen
demands.
d. Bivalves are filter-feeders, and cephalopods are
plant eaters.
ANSWER
BACK TO GAME
Topic 5:
$200 Answer
Why is an open circulatory system adequate for a
bivalve, such as a clam, but not for a cephalopod, such
as a squid?
a. Bivalves are largely sedentary, while squids
move quickly.
b. Bivalves have relatively high oxygen demands.
c. Cephalopods have relatively low oxygen
demands.
d. Bivalves are filter-feeders, and cephalopods are
plant eaters.
BACK TO GAME
Topic 5:
$300 Question
Mollusks have
a. a pseudocoelom.
b. a true coelom.
c. a body cavity between the
ectoderm and mesoderm.
d. no body cavity.
ANSWER
BACK TO GAME
Topic 5:
$300 Answer
Mollusks have
a. a pseudocoelom.
b. a true coelom.
c. a body cavity between the
ectoderm and mesoderm.
d. no body cavity.
BACK TO GAME
Topic 5:
$400 Question
The most active mollusks are the
a. bivalves.
b. cephalopods.
c. gastropods.
d. nudibranchs.
ANSWER
BACK TO GAME
Topic 5:
$400 Answer
The most active mollusks are the
a. bivalves.
b. cephalopods.
c. gastropods.
d. nudibranchs.
BACK TO GAME
Topic 5:
$500 Question
A pond snail is an example of a(an)
a. roundworm.
b. flatworm.
c. annelid.
d. gastropod.
ANSWER
BACK TO GAME
Topic 5:
$500 Answer
A pond snail is an example of a(an)
a. roundworm.
b. flatworm.
c. annelid.
d. gastropod.
BACK TO GAME
FINAL ROUND Question
Question:
a. Choice 1
b. Choice 2
c. Choice 3
d. Choice 4
ANSWER
BACK TO GAME
FINAL ROUND Answer
Question:
a. Choice 1
b. Choice 2
c. Choice 3 (correct answer)
d. Choice 4
BACK TO GAME