Worms!!! Question Preview (ID: 27216)


Acoelomate And Pseudocoelomate Worms - Flatworms, Roundworms, And A Variety Of Other Achelminthes.[print questions]

Which of the following is NOT a class in the phylum Platyhelminthes?
a) Trematoda
b) Turbellaria
c) Monogenea
d) Kinorhyncha

Which of the following is true of the phylum Platyhelminthes?
a) They have a circulatory and respiratory system
b) They can be very colorful and beautiful
c) They have a pseudocoelom
d) They only have lateral muscles

Which of the following phyla is triploblastic?
a) Platyhelminthes
b) Kinorhyncha
c) Nematomorpha
d) All of the above

Which of the following worms is a pseudocoelomate?
a) Horsehair worm
b) Flukeworm
c) Planarian
d) Tapeworm

Which of the following group of worms is NOT an acoelomate?
a) Nemertea
b) Turbellaria
c) Cycliophora
d) Nematomorpha

Which of the following phyla does NOT have a complete, one-way digestive tract with a mouth and an anus?
a) Rotifera
b) Platyhelminthes
c) Nemertea
d) Nematoda

Which of the following is NOT true of the Aschelminthes?
a) Some of them are not worms
b) All of them are pseudocoelomates
c) Some of them are Lophotrochozoans
d) Some of them are Ecysiszoans

Which of the following DEFINITELY sheds or molts their cuticle?
a) Lophotrochozoans
b) Ecdysiszoans
c) Aschelminthes
d) Pseudocoelomates

Which of the following is NOT true of Nematodes?
a) They move with a whip-like motion
b) They only have lateral muscles
c) They have proglottids that break off
d) They shed or molt their cuticle

As juveniles must infect an arthropod, but free-living in freshwater as adults
a) Nematoda
b) Nematomorpha
c) Nemertea
d) None of these is correct

Growing up to 30m in length, these non-parasitic worms have a long proboscis with a spike at the end which they use to catch earthworms and crustaceans
a) Nematoda
b) Nematomorpha
c) Nemertea
d) None of these is correct

Roundworms; most are common human parasites but a few are free-living.
a) Nematoda
b) Nematomorpha
c) Nemertea
d) None of these is correct

These worms are named for their outer covering that makes them appear like a vase filled with flowers
a) Acanthocephala
b) Kinorhyncha
c) Loricifera
d) Priapulida

Microscopic worms that live on the mouthparts of lobsters in the North Atlantic
a) Priapulida
b) Loricifera
c) Rotifera
d) Cycliophora

These free-living worms are known for their ciliated corona that propels them through water like a rudder. They can reproduce through parthogenesis.
a) Cycliophora
b) Rotifera
c) Nemertea
d) Kinorhyncha

These free-living, almost microscopic worms have a cone-like head that can be retracted into their necks.
a) Lophotrochozoans
b) Priapulida
c) Acanthocephala
d) Kinorhyncha

These free-living worms can also retract their heads, but they are larger and live in the mud and sand of very cold waters.
a) Acanthocephala
b) Priapulida
c) Kinorhyncha
d) Loricifera

Flatworms; many are common human parasites but many are free-living, mostly in water.
a) Platyhelminthes
b) Nematoda
c) Nemertea
d) Turbellaria

Spiny-headed worms; named for their short, retractable proboscis covered in spines.
a) Rotifera
b) Acanthocephala
c) Nematomorpha
d) Ecdysiszoans

Collectively, worms that have an intracellular cuticle that does not need to be shed/molted.
a) Pseudocoelomates
b) Aschelminthes
c) Ecdysiszoans
d) Lophotrochozoans

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