Term
roundworms have a digestive tract with ____ opening(s)
a. two
b. one
c. three
d. no |
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Definition
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Term
planarians can reproduce asexually by
a. producing polyps
b. exchanging both sperm and eggs
c. forming larvae
d. fission |
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Definition
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Term
a type of roundworm that lives a parasitic life is
a. trichinella
b. ascaris
c. enterobius
d. all of the above |
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Definition
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Term
which of the following has a cloaca
a. fluke
b. rotifer
c. nematode
d. tapeworm |
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Definition
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Term
which of the following statements about tapeworms is false
a. can grow to be large in human intestines
b. belong to genus schistosoma
c. dont have digestive system
d. can infect someone who eats undercooked food |
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Definition
| b. belong to genus schistosoma |
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Term
parasitic flatworms
a. gave rise to freeliving flatworms
b. mostly in class turbellaria
c. probably evolved from free living organisms
d. have a gut with 2 openings |
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Definition
| c. probably evolved from free living organisms |
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Term
a rotifer uses ____ to collect excess water in order to remove water from the body
a. mastax
b. kidneys
c. flame cells and excretory tubules
d. diffusion |
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Definition
| c. flame cells and excretory tubules |
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Term
all of the following groups of invertebrates are coelomates except
a. echinoderms
b. annelids
c. mollusks
d. nematodes |
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Definition
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Term
the nematode ascaris lumbricoides infects humans, spending most of its adult life inside the intestines of its host. to be infected, a person must
a. walk barefoot on infested soil
b. consume nematodes eggs
c. sit on infested toilet
d. all of the above |
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Definition
| b. consume nematode's eggs |
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Term
which of the following isn't true
a. some rotifers reproduce by parthenogenesis
b. planarians reproduce both sexually and asexually
c. most tapeworms are hermaphrodites
d. because they are all parasitic, roundworms produce asexually |
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Definition
| d. because they are all parasitic, roundworms produce asexually |
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Term
humans can avoid trichinosis by
a. washing hands
b. avoiding undercooked meat
c. wearing shoes outside
d. avoiding public restrooms |
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Definition
| b. avoiding undercooked meat |
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Term
turbellarians: free living::
a. tapeworms: free living
b. planaria: parasitic
c. cestodes: free living
d. flukes: parasitic |
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Definition
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Term
tapeworms absorb food from the host through their
a. tegument
b. scolex
c. suckers
d. none of the above |
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Definition
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Term
to which phylum do roundworms belong
a. arthropoda
b. platyhelmenthes
c. nematoda
d. annelida |
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Definition
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Term
which of the following isnt true about the planarian nervous system
a. includes ladderlike arrangement of nerves
b. ability to learn
c. includes ventral nerve cord
d. ability to sense light intensity |
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Definition
| c. includes ventral nerve cord |
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Term
roundworms have a fluid filled cavity called a
a. digestive system
b. coelom
c. pseudocoelom
d. none of the above |
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Definition
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Term
flatworms have no need for circulatory and respitory systems because
a. their cells are close to the exterior surface
b. spherical body shape allows diffusion of materials into tissues
c. coelom is bathed in blood and oxygen
d. disgestive sytem performs these functions |
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Definition
| a. their cells are close to the exterior surface |
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Term
which of the following isnt found in flatworms
a. bilateral symmetry
b. nervous system
c. circulatory system
d. anterior end |
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Definition
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Term
a roundworms digestive tract can be considered an advancement over a gastrovascular cavity because
a. undigested wastes dont have to leave through the same opening where food is taken in
b. different parts of the tract can carry out different functions
c. food moves through it in only one direction
d. all of the above |
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Definition
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Term
schistosomiasis is a disease caused by
a. planarian
b. trematode
c. cestode
d. roundworm |
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Definition
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Term
| ___ are rectangular body sections of tapeworms |
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Definition
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Term
| roundworms are members of the phylum ___ |
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Definition
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Term
| being infected with _____ worms can cause a condition known as elaphantiasis |
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Definition
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Term
| _____ are the simplest animals with bilateral symmetry |
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Definition
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Term
| organisms that feed by using cilia to sweep food into their mouths are called ______ |
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Definition
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Term
| the ________ is a protective cellular covering of the bodies of endoparasitic flukes that prevents them from being digested by their hosts |
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Definition
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Term
| the ability of some animals, such as flatworms, to regrow lost parts of their bodies is called ________ |
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Definition
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Term
| roundworms take in food through the mouth and eliminate wastes through an opening at the other end of the digestive tract called the ____ |
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Definition
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Term
| concentration of sense organs at the anterior end can be observed in flatworms and is called _________ |
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Definition
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Term
| a schistosome is a member of the phylum ______ |
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Definition
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Term
| flatworms take up oxygen and release carbon dioxide by the process of ___, which occurs across the body surface of the animals |
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Definition
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Term
| the _________ is a noncellular layer that protects a roundworm |
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Definition
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Term
| a planarian takes in food through the _______ |
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Definition
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