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Chapter 31 Protosome Animals Quiz
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Multiple Choice Questions
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They are larval dragonflies, destined to undergo incomplete metamorphosis.
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Molting as they grow larger
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reduced coelom
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The nematodes lack circular muscle fiber should
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Concluded about the pond organisms
The antennae of insects have a function most similar to that of _____. A) rhinophoresB) dorsal plummulesC) cerataD) chemoreceptors
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is a suspension feeder
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sex organs
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chelicerae
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rhino phones
You find a small animal with eight legs crawling up your bedroom wall. Closer examination will probably reveal that this animal has
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Bristle like structures on tiny apendages
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Allow the centipede to retain more
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simple, but not compound, eyes.
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number of shell plates
A lophotrochozoan
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Has a crown of ciliated tentacles that function in feeding
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protostome developmentbilateral symmetrythree embryonic germ layers
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The centipede had its spiracles open when CO2 packed
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Allow the centipede to retain more
Allows for identification
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A mantle
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mantle
0%
A corona
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Platyhelminth
Nematodes and arthropods both _____.
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grow by shedding their exoskeleton
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The nematodes lack circular muscle fiber should
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The centipede had its spiracles open when CO2 packed
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A digestive tract
A shared derived characteristic for members of the arthropod subgroup that includes spiders would be the presence of
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crustaceans
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gas tripod
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chelicerae
0%
sex organs
More closely related to a flatworm than a roundworm?
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It has no coelom
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A corona
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is a suspension feeder
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gastropods
Among the invertebrate phyla, phylum Arthropoda is unique in possessing members that have
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bivalves
0%
wings
0%
mantle
0%
sex organs
What would this imply about protostome evolution
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mantle
0%
1 and 2
0%
The centipede had its spiracles open when CO2 packed
0%
thorax
The possession of two pairs of antennae is a characteristic of
0%
crustaceans
0%
is a suspension feeder
0%
cerata
0%
reduced coelom
The presence of a lophophore in a newly discovered species would suggest that the species
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is a suspension feeder
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number of shell plates
0%
dorsal plummules
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rhino phones
What hypothesis could you make?
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Poisonous fangs
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Bristle like structures on tiny apendages
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C morsitqns live in drier habitat
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The centipede had its spiracles open when CO2 packed
She should find
0%
bivalves
0%
Gills
0%
A circulatory system
0%
Open circulatory system
Closing spiracles would
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Platyhelminth
0%
A digestive tract
0%
Allow the centipede to retain more
0%
grow by shedding their exoskeleton
Adaptations to terrestrial environments evolved independently in arthropods, mollusks, nematodes, and annelids. What logical conclusion would you make from this statement?
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Division of these two groups occurred after the protostome developmental sequence appeared.
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protostome developmentbilateral symmetrythree embryonic germ layers
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The common ancestor of all these groups was probably aquatic.
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Has a crown of ciliated tentacles that function in feeding
Which one of these mollusk groups can be classified as suspension feeders?
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wings
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mantle
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gastropods
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bivalves
If a lung was found in a mollusk, where would it be located?
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gas tripod
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reduced coelom
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Molting as they grow larger
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Mantle cavity
Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that
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arthropods have had more time to coevolve with land plants than have vertebrates
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Division of these two groups occurred after the protostome developmental sequence appeared.
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chelicerae
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The common ancestor of all these groups was probably aquatic.
On which body segment are arthropod wings attached?
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thorax
0%
cerata
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A corona
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gastropods
Which one of the following is a lophotrochozoan?
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Poisonous fangs
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Smelling
0%
mollusks
0%
gastropods
The body cavity type for arthropods and mollusk can best be described as
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reduced coelom
0%
Mantle cavity
0%
dorsal plummules
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gas tripod
A terrestrial animal species is discovered with larval characteristics
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bivalves
0%
gas tripod
0%
A circulatory system
0%
Open circulatory system
Would have trouble
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Poisonous fangs
0%
Platyhelminth
0%
2,3,4,5
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Smelling
The common ancestor of the protostomes had a coelom. What does this suggest?
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arthropods have had more time to coevolve with land plants than have vertebrates
0%
The body cavity evolved before the lophophore.
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The centipede had its spiracles open when CO2 packed
0%
Molting as they grow larger
The protostome developmental sequence arose just once in evolutionary history, resulting in two main subgroups: Lophotrochozoa and Ecdysozoa. What does this finding suggest?
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Division of these two groups occurred after the protostome developmental sequence appeared.
0%
The common ancestor of all these groups was probably aquatic.
0%
arthropods have had more time to coevolve with land plants than have vertebrates
0%
The body cavity evolved before the lophophore.
What is the best interpretation about the graph?
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protostome developmentbilateral symmetrythree embryonic germ layers
0%
1 and 2
0%
The nematodes lack circular muscle fiber should
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The centipede had its spiracles open when CO2 packed
What else would u observe about this organism?
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1 and 2
0%
mollusks
0%
A mantle
0%
A corona
What would be the best anatomical feature to look for to distinguish a gastropod from a chiton?
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reduced coelom
0%
number of shell plates
0%
It has no coelom
0%
1 and 2
Nematoda
0%
grow by shedding their exoskeleton
0%
Open circulatory system
0%
A digestive tract
0%
A circulatory system
What anatomical features explain this movement?
0%
The common ancestor of all these groups was probably aquatic.
0%
1 and 2
0%
protostome developmentbilateral symmetrythree embryonic germ layers
0%
The nematodes lack circular muscle fiber should
Which make this distinction
0%
A digestive tract
0%
Smelling
0%
gastropods
0%
Poisonous fangs
A terrestrial mollusk without a shell belongs to which clade?
0%
crustaceans
0%
Mantle cavity
0%
gas tripod
0%
gastropods
0 h : 0 m : 1 s
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